Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Lurch, a Watusi bull, had the largest horns in the world.
32
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
Cats and dogs can hear ultrasound.
350
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
A dairy cow can produce more milk when listening to music.
446