Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
Denmark has twice as many pigs as there are people.
66
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
The colossal squid has the largest eyes in the world.
4
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19