Bonobo are an endangered species. Due to their size, they are also known as the pygmy chimpanzees, dwarf or gracile chimpanzees. Once, scientists thought that they were a sub-species of chimpanzees. However, today, we know that they are a distinct species. Very often, both bonobos and common chimpanzees are collectively known by the generalized term chimpanzees.
Bonobo have distinct physical features. They have relatively long legs, pink lips, and a dark face and tail-tufts as they reach their adulthood.
These apes have parted long hair on their heads. When it comes to similarities with humans, the bonobos are as close as the chimpanzees!
Picture Credit : Google