The world's biggest vortexe of waste
There's an 8th continent. And it's made of plastic.
And even more
How do porcupines defend themselves?
The quokka is the only land mammal living on this island
This squirrel's fur is fluorescent under ultraviolet light
How do giraffes fight?
Drugs and pesticides: a pollution invisible to the naked eye
Birds are shrinking in size because of global warming