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Human Evolution

Across
An extinct genus of primates that existed from 23 to 5 million years ago during the Miocene epoch
The cubic capacity of the braincase
What scientists use to compare species
A natural process that results in the success of groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular environment
A species of archaic humans from the Pleistocene, earliest occurrence about 2 million years ago
The name given to a skeleton that led to new discoveries in the evolutionary tree
Locomotion on two legs
Down
Descent with modification from preexisting species
The study of human origins
The hole through which the spinal cord leaves the head
An extinct species or subspecies of archaic humans who lived in Eurasia until about 40,000 years ago
A group consisting of humans and the extinct species that are more closely related to us than to chimpanzees