The largest earthworm on record was found in South Africa and measured 22 feet.
151
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
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
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255