People evolved to be shorter to survive in colder climates.
Human created noise pollution has negative effects on animals.
For spotted hyenas, sibling rivalry can often be a matter of life and death.
You may have seen a cat fall from a tree or high rooftop. Ever wonder how felines can survive such great falls?
A world without them might not be as nice as we might think...
To make matters worse, the leatherback sometimes mistakes the soft plastic refuse littering the ocean for its normal snack-of-choice, jellyfish
Some seeds lie dormant as a survival technique: they wait until weather conditions are optimal to make their big debut.
Despite your best chemical defenses, cockroaches are evolving to bug you even more.
Losing the ability to form memories can free up the brain to focus on survival.