Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
When cats are happy, they may squeeze their eyes shut.
10
One litter of kittens can be produced by more than one father.
57
Dolphins have names for one another.
18
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
A puppy is born blind, deaf, and toothless.
16