A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
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 banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
The largest earthworm on record was found in South Africa and measured 22 feet.
151
Sheep, goats, octopuses, and toads have rectangular pupils.
7
One in three dog owners say they have talked to their pets on the phone.
427
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34