Spiders have transparent blood.
56
Frogs cannot swallow without blinking.
41
The cicada, a fly found in Africa, spends 17 years of its life sleeping; and only two weeks is awake during which mates and then dies.
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
At 188 decibels, the whistle of the blue whale is the loudest sound produced by any animal
34
The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
12