The Bonobo and Orangutan are close evolutionary relatives of human beings.
Studies of anatomical and molecular similarities suggest these two groups are close evolutionary relatives.
The two species of chimpanzees, along with gorillas, are the closest living evolutionary relatives to people.
These two species are the closest living evolutionary relatives to humans, sharing a common ancestor with humans about four to six million years ago.
Scientists originally thought that spindle cells were found only in humans and our closest evolutionary relatives: apes and monkeys.
One striking feature of this family tree is that modern tardigrades may be Opabinia's closest living evolutionary relatives.
Historically, the closest evolutionary relatives of arthropods were considered to be annelid worms, as both groups have segmented bodies.
The chimpanzee and bonobo are the closest living evolutionary relatives to humans.
There has been debate about what their closest evolutionary relatives are, and how all of these evolved from the ancestral chelicerates, which were marine animals.