North America

Research questions effectiveness of translocation conservation method

New research by University of Arkansas biologists suggests that supplementing the numbers of a threatened species with individuals from other locations might not be as effective for some species
22 March 2017

Sea otters ahead of dolphins in using tools

Sea otters may have been using stone tools for thousands or even millions of years, according to scientists. 

 BBC 

22 March 2017

Mort d'un des derniers marsouins de Californie

Un bébé de l'espèce de cétacé la plus menacée au monde a été retrouvé sur une plage mexicaine. Il ne reste plus que 30 individus.

17 March 2017

Bald eagle population threatened by lead poisoning, US scientists warn

The famous bird has rebounded across America, but many fear that progress is threatened by lead ammunition that ends up in carrion the eagles eat.

16 March 2017

Keeping up with the Juncos: How birds thrive or die in the suburbs

Surviving in land that’s suddenly being transformed from forest to suburb isn’t a particularly easy change for birds, but some species find a way to thrive in suburban areas while others reproduc
15 March 2017

Milkweed losses may not fully explain monarch butterfly declines

Monarch butterfly declines cannot be attributed merely to declines in milkweed abundance, researchers report.

14 March 2017

Rapid decline of Arctic sea ice a combination of climate change and natural variability

The dramatic decline of Arctic sea ice in recent decades is caused by a mixture of global warming and a natural, decades-long atmospheric hot spot over Greenland and the Canadian Arctic.

13 March 2017

Rising numbers of great white sharks headed toward Cape Cod, scientists say

Figure rises for second consecutive year, says Massachusetts’ top shark expert, warning of ‘public safety issue’ despite no deaths in state’s waters since 1936.

12 March 2017

Why the world needs zoos

The ongoing extinction crises shows that zoos are needed - even for common species.

The Guardian

08 March 2017

Scientists Track, For the First Time, One of the Rarest Songbirds on Its Yearlong Migration

The journey of the Kirtland’s warbler is discovered thanks to a combination of the latest tiny technology and centuries-old solar location methods.
06 March 2017