The elephant brain weighs about 6,000g.
274
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Baks the blind boxer has a seeing eye goose named Buttons; a four-year-old goose who leads the pup around everywhere either by hanging onto him with her neck, or by honking to tell him which way to go.
16
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A group of kittens is called a "kindle".
10