A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Alligators can live up to 100 years.
337
Sloths take two weeks to digest their food.
243
Parrot parents "name" their children with a signature call.
112
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Moths are unable to fly during an earthquake.
328