Lobsters have blue blood.
476
The colossal squid has the largest eyes in the world.
4
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
The reindeer is the only mammal that can see UV light.
17