Tigers can see 6 times better at night than humans.
305
Anteaters prefer termites to ants.
18
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
A blue whale's aorta (the main blood vessel) is large enough for a human to crawl through.
52
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
The Basenji dog is the only dog that is not able to bark.
4