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
Hyenas regularly eat the feces of other animals!
-1
Crocodiles swallow stones to help them dive deeper.
55
A Giraffe has the same number of bones in its neck as a man.
36
Male monkeys lose the hair on their heads in the same way men do.
41
Rats multiply so quickly that in 18 months, two rats could have over a million descendants.
33
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