Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
10
Cats recognise the voice of their owner, but never evolved to care.
22
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Only 3% of bird species have penises.
0
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20