Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Cats and dogs can hear ultrasound.
350
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11
A dairy cow can produce more milk when listening to music.
446
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11