Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
The elephant brain weighs about 6,000g.
274
Whales and dolphins can't taste anything other than salt.
11
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
The reindeer is the only mammal that can see UV light.
17
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9