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Anne

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Wildlife
« on: July 11, 2013, 01:54:56 PM »
The US government has decided for the second time not grant protection to Arctic ribbon seals.
These seals depend on sea ice in the Bering and Chukchi seas off Alaska and are mainly threatened by global warming and the consequent loss of its sea-ice habitat, as well as dangerous oil development. The decision comes just two weeks after President Obama’s speech on the importance of addressing the climate crisis.

“President Obama’s stirring words about the impending climate disaster don’t do much for ribbon seals,” said the Center for Biological Diversity’s Alaska director Rebecca Noblin. “Without concrete action to protect these seals and other ice-dependent animals, speeches like that are only sending more hot air into the atmosphere.”

While acknowledging that ribbon seals will be harmed by rapidly melting sea ice, the National Marine Fisheries Service decided the species did not qualify for protection because their ultimate disappearance from large portions of their range would somehow not be significant to the species. This is the second time the Service has declined to protect ribbon seals; today’s decision follows a challenge by the Center after the agency’s first denial in 2008.

Anne

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Arctic Sea-Ice Loss Has Widespread Effects On Wildlife
« Reply #1 on: August 02, 2013, 07:08:20 AM »
Penn State University Professor of Biology Eric Post and an international team of scientists looked at the effects of sea ice loss by examining relationships among algae, plankton, whales, and terrestrial animals such as caribou, arctic foxes and walrus; as well as the effects of human exploration of previously inaccessible parts of the region1.
A domino effect of sea-ice melting on terrestrial animals, Post explained, could happen through a disruption in the food chain. Sea-ice algae and sub-ice plankton, which together account for 57 percent of the total annual biological production in the Arctic Ocean, already are being immediately affected by sea-ice melting because ice loss triggers a significant change in the blooming times of these organisms. Likewise, land adjacent to areas of sea-ice loss will experience significant surface warming inland from the coastline, affecting soil conditions and plant growth. Post and his colleagues hypothesize that, while invertebrate ocean-dwelling animals -- such as zooplankton that feed on algae and phytoplankton in the seas -- already are being affected, larger terrestrial animals such as caribou could find their land-dwelling food sources disrupted, as well, due to temperature changes affecting plant communities inland.
"A change in population mixing could be another, indirect effect of sea-ice melting," Post said. He explained that populations of wolves and arctic foxes that currently are isolated only during the summer could become even more isolated. A longer period of the year without ice, which promotes travel between populations, could lead to a decline in crossbreeding.
However, for other species, the effect of sea-ice loss could be just the opposite: "We know that, for some species, sea ice acts as a barrier to intermixing," Post explained. "So for these species, ice loss and a lengthening of the ice-free season likely will increase population mixing, reducing genetic differentiation." Post explained that, for example, polar and grizzly bears already have been observed to have hybridized because polar bears now are spending more time on land, where they have contact with grizzlies.

From Science Daily. The paper in Science, linked below, is behind a paywall.

1E. Post, U. S. Bhatt, C. M. Bitz, J. F. Brodie, T. L. Fulton, M. Hebblewhite, J. Kerby, S. J. Kutz, I. Stirling, D. A. Walker. Ecological Consequences of Sea-Ice Decline. Science, 2013; 341 (6145): 519 DOI: 10.1126/science.1235225

JimD

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Re: Wildlife
« Reply #2 on: August 02, 2013, 08:02:50 PM »
Huge declines in wildlife populations in the UK.

Headlines For the first time ever, the UK’s wildlife organisations have joined forces to undertake a health check of nature in the UK and its Overseas Territories. The key findings are presented here, and the full report is online: www.rspb.org.uk/stateofnature
    60% of the 3,148 UK species we assessed have declined over the last 50 years and 31% have declined strongly.
    Half of the species assessed have shown strong changes in their numbers or range, indicating that recent environmental changes are having a dramatic impact  on nature in the UK. Species with specific habitat requirements seem to be faring worse than generalist species.
    A new Watchlist Indicator, developed  to measure how conservation priority species are faring, shows that their overall numbers have declined by 77%  in the last 40 years, with little sign  of recovery.
    Of more than 6,000 species that have been assessed using modern Red List criteria, more than one in 10 are thought to be under threat of extinction in the UK.
    Our assessment looks back over 50 years at most, yet there were large declines in the UK’s wildlife prior to this, linked to habitat loss.
    The UK’s Overseas Territories hold a wealth of wildlife of huge international importance and over 90 of these species are at high risk of global extinction.
    There is a lack of knowledge on the  trends of most of the UK’s species.  As a result, we can report quantitative trends for only 5% of the 59,000 or so terrestrial and freshwater species in  the UK, and for very few of the 8,500  marine species. Much needs to be done  to improve our knowledge.
    What we do know about the state of  the UK’s nature is often based upon  the efforts of thousands of dedicated volunteer enthusiasts who contribute their time and expertise to monitoring schemes and species recording.
    The threats to the UK’s wildlife are  many and varied, the most severe  acting either to destroy valuable habitat  or degrade the quality and value of  what remains.
    Climate change is having an increasing impact on nature in the UK. Rising average temperatures are known to be driving range expansion in some species, but evidence for harmful impacts is  also mounting. 
The full report is online:  www.rspb.org.uk/stateofnature



http://www.rspb.org.uk/ourwork/science/stateofnature/index.aspx
We do not err because truth is difficult to see. It is visible at a glance. We err because this is more comfortable. Alexander Solzhenitsyn

How is it conceivable that all our technological progress - our very civilization - is like the axe in the hand of the pathological criminal? Albert Einstein

JimD

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Re: Wildlife
« Reply #3 on: September 03, 2013, 07:29:00 PM »
Minnesota's moose population has plummeted 52% since 2010.  Scientists indicate that warming conditions may be worsening disease and competition from other species.

http://www.nbcnews.com/video/nightly-news/52908322/#52908322
We do not err because truth is difficult to see. It is visible at a glance. We err because this is more comfortable. Alexander Solzhenitsyn

How is it conceivable that all our technological progress - our very civilization - is like the axe in the hand of the pathological criminal? Albert Einstein

Andreas T

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Re: Wildlife
« Reply #4 on: October 07, 2013, 01:48:25 AM »
http://alaskafisheries.noaa.gov/newsreleases/2013/walrushaulout093013.htm
seems  somebody forgot to tell these walrus that sea ice is recovering.

JimD

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Re: Wildlife
« Reply #5 on: December 20, 2013, 04:16:31 PM »
We do not err because truth is difficult to see. It is visible at a glance. We err because this is more comfortable. Alexander Solzhenitsyn

How is it conceivable that all our technological progress - our very civilization - is like the axe in the hand of the pathological criminal? Albert Einstein

Laurent

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Re: Wildlife
« Reply #6 on: December 24, 2013, 07:04:10 PM »
Absolutely incredible birds...ouahou

Birds-of-Paradise Project

Laurent

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Re: Wildlife
« Reply #7 on: December 26, 2013, 10:11:00 PM »
The wild birds even far from any human is impacted... plastics are everywhere !
Plastics that we through away but it may happened we have a problem with our waching machines...yes most of my clothes are synthetic...a bit of them is wached away each time they are washed...that + that + that... you obtaine a soup of microparticules floating in the oceans...
http://epanews.fr/video/video/show?id=2485226%3AVideo%3A1194110&xgs=1&xg_source=msg_share_video#.UryZA6GsReQ

Laurent

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Re: Wildlife
« Reply #8 on: December 29, 2013, 06:52:42 PM »
Shifting mirrors: adaptive changes in retinal reflections to winter darkness in Arctic reindeer
http://rspb.royalsocietypublishing.org/content/280/1773/20132451.abstract?sid=7c627b92-02d5-4f66-b7fe-802ef5bf2b3b#aff-2

JimD

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Re: Wildlife
« Reply #9 on: January 02, 2014, 05:56:06 PM »
I hope no public money went into this or it will end up on the news.  :o 

Ahhhh..the life of a scientist.

Abstract (provisional)

Introduction

Several mammalian species spontaneously align their body axis with respect to the Earth's magnetic field (MF) lines in diverse behavioral contexts. Magnetic alignment is a suitable paradigm to scan for the occurrence of magnetosensitivity across animal taxa with the heuristic potential to contribute to the understanding of the mechanism of magnetoreception and identify further functions of magnetosensation apart from navigation. With this in mind we searched for signs of magnetic alignment in dogs. We measured the direction of the body axis in 70 dogs of 37 breeds during defecation (1,893 observations) and urination (5,582 observations) over a two-year period. After complete sampling, we sorted the data according to the geomagnetic conditions prevailing during the respective sampling periods. Relative declination and intensity changes of the MF during the respective dog walks were calculated from daily magnetograms. Directional preferences of dogs under different MF conditions were analyzed and tested by means of circular statistics.

Results

Dogs preferred to excrete with the body being aligned along the North-south axis under calm MF conditions. This directional behavior was abolished under Unstable MF. The best predictor of the behavioral switch was the rate of change in declination, i.e., polar orientation of the MF.
...


http://www.frontiersinzoology.com/content/10/1/80/abstract
We do not err because truth is difficult to see. It is visible at a glance. We err because this is more comfortable. Alexander Solzhenitsyn

How is it conceivable that all our technological progress - our very civilization - is like the axe in the hand of the pathological criminal? Albert Einstein

TerryM

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Re: Wildlife
« Reply #10 on: January 02, 2014, 07:08:45 PM »
JimD
If this extends to the rest of mammalian species I can see Litter Box Alignment as the latest pet service being offered & the rearrangement of commodes could be the biggest thing since Sheng Feng.


Terry

Laurent

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Re: Wildlife
« Reply #11 on: January 17, 2014, 09:26:03 AM »
Underwater timelapse shows secret life of a coral reef
http://www.bbc.co.uk/news/science-environment-25762906

Laurent

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Re: Wildlife
« Reply #12 on: January 17, 2014, 09:42:18 AM »
11 Jellyfish Facts That Are Just As Mesmerizing As The Creatures Themselves (PHOTOS)
http://www.huffingtonpost.com/2014/01/15/jellyfish-facts_n_4606737.html?utm_hp_ref=green&ir=Green

Laurent

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Re: Wildlife
« Reply #13 on: January 18, 2014, 11:31:11 AM »
Don't want to be a crow !
Amazing footage of how falcons catch their prey.

Laurent

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Re: Wildlife
« Reply #14 on: January 18, 2014, 11:43:05 AM »

Anne

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Re: Wildlife
« Reply #15 on: March 08, 2014, 12:37:15 PM »
Bear Tracker, from Polar Bears International, doesn't seem to have been posted before.
Using this tool, you can watch polar bears as they pad across the sea ice, which they use as a platform for hunting seals. Our Bear Tracker shows current and past sea ice levels on Hudson Bay, along with the rough locations of polar bears.

JimD

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Re: Wildlife
« Reply #16 on: March 08, 2014, 03:28:22 PM »
Anne

Thanks, that is cool.  I was all excited about adopting one of the bears as the site said you can do that ... until I got to the point that it cost $7,000 a year.  It will be interesting to watch them during the melt.
We do not err because truth is difficult to see. It is visible at a glance. We err because this is more comfortable. Alexander Solzhenitsyn

How is it conceivable that all our technological progress - our very civilization - is like the axe in the hand of the pathological criminal? Albert Einstein

JimD

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Re: Wildlife
« Reply #17 on: March 10, 2014, 04:40:02 PM »
We do not err because truth is difficult to see. It is visible at a glance. We err because this is more comfortable. Alexander Solzhenitsyn

How is it conceivable that all our technological progress - our very civilization - is like the axe in the hand of the pathological criminal? Albert Einstein

JimD

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Re: Wildlife
« Reply #18 on: March 13, 2014, 08:00:38 PM »
A rampaging elephant smashed a house to bits in an Indian village, but turned back and rescued a baby trapped in the rubble, a couple have claimed...

Jhalda ranger Samir Bose told ToI the animal has damaged at least 17 houses in Mathadi, Kasidih and Ghoshra village areas.


Sounds like the elephant is trying to send the message to stop building your houses in my yard.  But you know they are going to kill it eventually.

http://www.independent.co.uk/news/weird-news/rampaging-elephant-smashes-up-house-but-then-saves-crying-baby-trapped-under-debris-9186030.html
We do not err because truth is difficult to see. It is visible at a glance. We err because this is more comfortable. Alexander Solzhenitsyn

How is it conceivable that all our technological progress - our very civilization - is like the axe in the hand of the pathological criminal? Albert Einstein

Laurent

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Re: Wildlife
« Reply #19 on: March 18, 2014, 10:34:39 AM »
Narwhal’s tusk is super sensitive
http://www.bbc.co.uk/nature/26534619

Anne

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Re: Wildlife
« Reply #20 on: March 27, 2014, 03:22:12 PM »

Laurent

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Re: Wildlife
« Reply #21 on: April 09, 2014, 01:19:03 PM »

JimD

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Re: Wildlife
« Reply #22 on: April 09, 2014, 05:30:27 PM »
He was just doing his part to solve AGW.

Officials capture one-ton crocodile that ate 4 people

A 2,204 pound crocodile suspected of eating four people and injuring several others has been captured by wildlife officials in Uganda.


http://nypost.com/2014/04/06/officials-capture-one-ton-crocodile-that-ate-4-men/
We do not err because truth is difficult to see. It is visible at a glance. We err because this is more comfortable. Alexander Solzhenitsyn

How is it conceivable that all our technological progress - our very civilization - is like the axe in the hand of the pathological criminal? Albert Einstein

JimD

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Re: Wildlife
« Reply #23 on: April 11, 2014, 04:06:32 PM »
9 blue whales die after getting trapped off Newfoundland's coast

Trapped in the ice

http://www.ctvnews.ca/canada/9-blue-whales-die-after-getting-trapped-off-newfoundland-s-coast-1.1769042#ixzz2yaQi2TlO
We do not err because truth is difficult to see. It is visible at a glance. We err because this is more comfortable. Alexander Solzhenitsyn

How is it conceivable that all our technological progress - our very civilization - is like the axe in the hand of the pathological criminal? Albert Einstein

Laurent

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Re: Wildlife
« Reply #24 on: April 28, 2014, 10:28:01 PM »
Amazing experience. Not so vicious these leopard's seals..
http://siz.io/s/wild-animals/v/face-off-with-a-deadly-predator?srctum

JimD

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Re: Wildlife
« Reply #25 on: May 19, 2014, 04:52:12 PM »
We do not err because truth is difficult to see. It is visible at a glance. We err because this is more comfortable. Alexander Solzhenitsyn

How is it conceivable that all our technological progress - our very civilization - is like the axe in the hand of the pathological criminal? Albert Einstein

Laurent

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Re: Wildlife
« Reply #26 on: May 21, 2014, 02:37:46 PM »

Laurent

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Re: Wildlife
« Reply #27 on: May 29, 2014, 10:41:05 PM »
We are killing species at 1000 times the natural rate
http://www.newscientist.com/article/dn25645-we-are-killing-species-at-1000-times-the-natural-rate.html?cmpid=RSS|NSNS|2012-GLOBAL|environment#.U4eaboZJzlc

What is important for an ecosystem is also the variability inside the species...

Laurent

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Re: Wildlife
« Reply #28 on: June 07, 2014, 10:10:05 AM »
Polar bear POV: videocam shows female hunting and finding a mate
http://www.theguardian.com/environment/2014/jun/07/polar-bear-videocam-females-hunting

Anne

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Re: Wildlife
« Reply #29 on: June 07, 2014, 11:10:15 AM »
Anchorage Daily News has a nice article on Project ITEX, gathering data on Arctic plants, working out which will survive a warming climate and the surprising effect on albedo of mosses. More besides...

Imaging the future of Arctic plant life
An overview of ITEX results shows that shrubs and graminoids (grasses) grow well in warmed plots, while lichens and bryophytes (mosses and liverworts) decline. Shrubs, especially deciduous species, thrive at the expense of other species, which lowers diversity. These findings mesh with the observed increase of shrubs in locations elsewhere in the southern Arctic. Along with the increase in shrubs, one can expect to see higher vegetation canopy height (taller plants in general).

”Mosses and lichens tend to disappear so the overall diversity inside these things tends to get lower with warming, so: fewer species. And there’s some changes in species composition.” “The loss of the bryophytes and lichens and increases in shrub height is the dominant effect that we’ve seen.” “The graminoids respond better. Meaning they grow better and flower earlier. One of the things that has happened at some of our sites, the wet sites where we have just a few graminoid species (like carrix – graminoid means grass-like), carrix or grasses have filled up the chambers so much that all of this dead or organic matter leaves things in the Arctic. It’s cold and wet here; things don’t break down very fast. This is why the Arctic has all this stored carbon, all the standing dead gets trapped in there. And so they actually have less light.” ~Steve Oberbauer
Mysterious moss

Oberbauer is excited about the very fine-scale measurements allowed by the instruments aboard his ITEX AON tram. “Already we have found out something very interesting that we hadn’t expected.” His team learned that their expectations about albedo (surface reflectiveness) were sometimes reversed. Normally, the high albedo of snow or sea ice bounces the Sun’s light back into space. The low albedo of dark-colored vegetated lands in contrast absorbs light, heating up the earth. Yet lowly moss can throw a wrench into the works.

“You would think something with a high albedo should be cooler and something with a low albedo should be warmer because it is absorbing more of that solar energy. But what we find at the small scale is, some places that relationship is reversed. That actually at higher albedo’s we saw higher temperatures and at low albedo’s we saw lower temperatures, which seems completely reversed.”
“Underneath the overstory of these plants, there’s a layer of mosses that is almost completely covering many areas.” “And what we think it is, is that it is areas that are dominated by moss – and moss when it is wet is not as reflective as when it is dry. When moss is wet it is evaporating a lot of water, and water as it evaporates cools (the whole principal of evaporative cooling with air conditioners that work by that process). So we found something not intuitive, completely unexpected and something that you wouldn’t pick up at the scale of a satellite.” ~Steve Oberbauer
Read more here: http://www.adn.com/2014/06/04/3501527/imaging-the-future-of-arctic-plant.html#storylink=cpy

Laurent

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Re: Wildlife
« Reply #30 on: June 17, 2014, 01:04:53 AM »
Species Migrating Upslope Due to Climate Change in Tropical Montane Cloud Forests of Peru May Meet a Grass Ceiling
http://www.huffingtonpost.com/keith-peterman/species-migrating-upslope_b_5494509.html?utm_hp_ref=green&ir=Green

Laurent

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Re: Wildlife
« Reply #31 on: June 17, 2014, 02:28:02 PM »

Laurent

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Re: Wildlife
« Reply #32 on: June 18, 2014, 05:36:03 PM »

Laurent

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Re: Wildlife
« Reply #33 on: June 24, 2014, 12:29:28 PM »
Your pictures: Celebrating National Insect Week
http://www.bbc.co.uk/nature/27980820

Laurent

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Re: Wildlife
« Reply #34 on: June 24, 2014, 12:33:42 PM »

Laurent

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Laurent

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Re: Wildlife
« Reply #36 on: June 27, 2014, 11:00:15 PM »

Laurent

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Re: Wildlife
« Reply #37 on: July 02, 2014, 06:45:48 PM »
Interesting this relationship between dogs and bears...
Polar bears and dogs playing

Laurent

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Re: Wildlife
« Reply #38 on: July 18, 2014, 02:50:12 PM »

Anne

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Re: Wildlife
« Reply #39 on: July 20, 2014, 03:29:44 PM »
Polar bears adapt to life on the land. They are spending three weeks longer on land than they did in the 1980s and are discovering new sources of food.

Link

Laurent

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Re: Wildlife
« Reply #40 on: August 13, 2014, 10:08:58 PM »

Laurent

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Re: Wildlife
« Reply #41 on: August 22, 2014, 10:37:28 AM »

Laurent

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Re: Wildlife
« Reply #42 on: August 22, 2014, 01:58:17 PM »
Coral and fish can 'smell' bad reefs
http://www.bbc.com/news/science-environment-28880216

Laurent

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Re: Wildlife
« Reply #43 on: August 22, 2014, 08:35:12 PM »

Laurent

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Re: Wildlife
« Reply #44 on: August 23, 2014, 07:37:30 PM »

Laurent

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Re: Wildlife
« Reply #45 on: August 25, 2014, 05:53:02 PM »

Laurent

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Re: Wildlife
« Reply #46 on: August 29, 2014, 10:41:19 PM »
Insect molting is 'like having your lungs ripped out'
http://news.sciencemag.org/climate/2014/08/insect-molting-having-your-lungs-ripped-out

Now, a study of mayfly larvae has revealed another difficulty: While molting, insects can’t breathe. Alarmingly, the respiratory impairment grows more severe with higher temperatures, suggesting that climate change and other stressors could make molting an even greater challenge.

Laurent

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Re: Wildlife
« Reply #47 on: August 29, 2014, 11:25:05 PM »

Laurent

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Re: Wildlife
« Reply #48 on: September 03, 2014, 08:44:21 PM »

Laurent

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Re: Wildlife
« Reply #49 on: September 08, 2014, 10:16:50 PM »
A selfie taken by a Sulawesi Crested Macaque. Deforestation threatens is home, and that of many species still undiscovered there.
http://news.mongabay.com/2014/0826-gfrn-joshi-sulawesi.html

(The photographer who own the camera was claiming onwership of the photo but he did lose the trial, the photo belongs to anybody since the owner can't claim...) ;)
« Last Edit: September 09, 2014, 08:56:39 AM by Laurent »