Why reindeer eyes change color over the course of the year
What's golden in summer but blue in winter? Reindeer eyes. Here is why they are so unique. 👀
And even more
Grizzly-polar bear hybrid is a result of climate change
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?
Birds are shrinking in size because of global warming