A chicken will lay bigger and stronger eggs if you change the lighting in such a way as to make them think a day is 28 hours long!
37
The cat brain weighs about 30g.
167
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Honeybees have a type of hair on their eyes!
22
Crocodiles swallow stones to help them dive deeper.
55
Goldfish lose their color if they are kept in dim light or are placed in a body of running water, such as a stream.
12
There are some species of snails that are extremely venomous.
72