Answered: When did our first distant relatives…

Science

Biology

When did our first distant relatives leave Africa?

Intro To Health Care

4th Edition

ISBN:9781337338295

Author:Mitchell

Publisher:Mitchell

Chapter22: Controlling Health Care Costs

Section: Chapter Questions

Problem 4RQ

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Concept explainers

Primate evolution

Primates are a relatively new species and first appeared in the fossil record nearly 55 million years ago. They may have originated as far back as the cretaceous period. Their fossils were observed in North America, Asia, and Europe. Long before the first monkeys and their prosimian relatives developed, most animal species thrived and died. The first primates did not exist until about 50-55 million years ago, even though the planet is 4.54 billion years old and the first life goes back at least 3.5 billion years. Dinosaurs had been extinct for 10 to 15 million years when this happened.

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a. When did our first distant relatives leave Africa?

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