20 Lesser-Known Facts About Animals That Are Utterly Adorable

Most of us have superficial information about animals and their lives. Some of us just care about the cute and beautiful animals. But, scientists have estimated that there are about 8.7 million species of plants and animals in existence, however, only around 1.2 million of them have been identified and described so far (most of which are insects). This means that millions of other organisms remain a complete mystery.

Despite their size, cheetahs can't roar – so they purr and chirp instead. The bones of the cheetah's voice box form a fixed structure, with divided vocal cords that vibrate with both in and out breaths. This structure is the same for all the 'small' cats. While this design enables these cats to purr continuously, it limits the range of other sounds and prevents them from being able to roar.