A blue whale's aorta (the main blood vessel) is large enough for a human to crawl through.
52
Anteaters prefer termites to ants.
18
The heart of a mouse beats 650 times per minute!
53
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 new born kangaroo is small enough to fit in a spoon!
7
The world's termites outweigh the world's humans 10 to 1!
15