Rabbits have long been domesticated. Humans developed the Angora rabbit breed because they loved its long, silky fur.

A rhinoceros' horn is made of hair, and not of ivory like an elephant's tusks (which are actually his teeth).

The eagle appears on the president's flag, the House of Representatives' mace, military insignia, and billions of one-dollar bills. The bald eagle first appeared as an American symbol on a Massachusetts copper cent coined in 1776.

Ostrich & Cassowary are very big birds and bigger than the Wandering Albatross. However, only the Wandering Albatross can actually fly which makes him the biggest (by wingspan) flying bird.

The tiniest living mammal in the world is the bumblebee bat which lives in Thailand. The bumblebee bat is just a little bit bigger than an actual bumblebee (insect) and weighs less than a small coin.

The Saltwater crocodile is the biggest living reptile and most aggressive of all crocodiles. It is a big-headed species and has a relatively broad snout, especially when older.

The giant tortoise's lifespan is around 150 years, making it the longest-living animal on Earth. It is recorded that in captivity, some giant tortoises even lived as long as 177 years.

The Guinness record of the tallest giraffe belongs to A 12-year-old giraffe named Forest, a resident of Australia Zoo in Queensland. Forest has been confirmed as the world's tallest giraffe, standing at 5.7 m (18 ft 8 in)

Scientists estimates that the dog's sense of smell is between 10,000 to 100,000 times better than ahuman. The number of scent receptors dogs have is much higher than humans. For every one scent receptor a human has, a dog has about 50.

Snails need moisture in order survive. Thus, if the climate does not allow it, they can sleep up to three years. It has been reported that depending on geography, snails can shift into hibernation (which occurs in the winter), or estivation (also known as 'summer sleep'), helping to escape hot climates.