Hundreds of sea otter are found dead
An algae might be killing hundreds of sea otters along the North American coast.
And even more
Drugs and pesticides: a pollution invisible to the naked eye
How salmon swim upstream
Sociable weaver nests provide shelter to many birds
What to do if you encounter a snake
These people joined the "fertile disobedience" movement to protect nature
If there were only 100 animals on Earth...