Being around at about 6 million years ago, Orrorin tugenensis is one of the oldest early humans. The species' individual were approximately the size of a chimpanzee and had small teeth with a thick enamel (the hard glossy substance that covers the crown of the tooth) which is similar to humans today. Orrorin tugenensis are believed to have climbed trees due to some features of the arm bones but also had the ability to walk upright with two legs on the ground.
It Is believed that this species used tools similar to those used by modern chimpanzees. These include:
Plant materials that were easily shaped or modified such as twigs and sticks. These tools could have been used for a variety of simple tasks such as obtaining food.
Unmodified stones- stones that were not shaped, modified or altered before their use. Cracking nuts is an example of a use of these tools; they used it to process hard foods.
During the time these species lived, the environment was an open woodland with dense tree forests. Their large flat molars suggest a diet of fruit and vegetables but it may also have been an opportunistic meat eater
It Is believed that this species used tools similar to those used by modern chimpanzees. These include:
Plant materials that were easily shaped or modified such as twigs and sticks. These tools could have been used for a variety of simple tasks such as obtaining food.
Unmodified stones- stones that were not shaped, modified or altered before their use. Cracking nuts is an example of a use of these tools; they used it to process hard foods.
During the time these species lived, the environment was an open woodland with dense tree forests. Their large flat molars suggest a diet of fruit and vegetables but it may also have been an opportunistic meat eater
The species of Orrorin tugenensis also had the brain and skull size of a chimpanzee.