Cats recognise the voice of their owner, but never evolved to care.
22
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
Dogs sometimes fake being sick to get attention.
26
The seahorse is the only fish to have a neck.
12
Nicole Kidman is scared of butterflies.
65