Dogs sometimes fake being sick to get attention.
26
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4
Early American humans hunted car-size armadillos and used their shells for houses.
12
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
Cats recognise the voice of their owner, but never evolved to care.
22