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Human Evolution. Hominid Evolution. Human Evolution. Objectives. Benchmarks. SC.912.L15.1* SC.912.L.14.26*. Identify the characteristics that all primates share. Describe the major evolutionary groups of primates. Essential Question.
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Human Evolution Hominid Evolution
Human Evolution Objectives Benchmarks SC.912.L15.1* SC.912.L.14.26* • Identify the characteristics that all primates share. • Describe the major evolutionary groupsof primates.
Essential Question • Of all the adaptations we learned in class, evaluate which one provides the greatest fitness to primates.
Mind Streaming: How would we distinguish these organisms? (10 min)
WHAT IS A PRIMATE? A primate is a mammal that has: • Flexible fingers and toes to grip • Large thumbs and toes • Ability to circulate arms • Binocular Vision • Well developed cerebellum and cerebrum
WHY IS BINOCULAR VISION IMPORTANT? Binocular Vision: The ability to combine visual images from both eyes, providing depth and a 3-dimensional view of the world.
WHAT IS POSSIBLE WITH A MORE COMPLEX BRAIN? Cerebellum: The “thinking part” of the brain is large and complex. CHECK POINT: What can you do with a more complex brain?
WHEN DID PRIMATES EVOLVE? • Humans and primates evolved from a common ancestor that lived 65 million years ago. Primate Evolution
WHAT ARE ANTHROPOIDS AND HOMINIDS? • The anthropoids, or human like primates, include monkeys, great apes, and humans. • Great apes are also calledhominoids, and include gibbons, orangutans, gorillas, chimpanzees, and humans. • Recent DNA analyses confirm that chimpanzees are the most closely related to humans.
CHECK POINT • Circle the Anthropoid Group • Circle the Hominoid Group
How did Hominines Evolve? • The skull, neck, spinal column, hip bones, and leg bones of early hominine species changed shape in ways that enabled later species to walk upright. • The evolution of bipedal, or two-footed, locomotion freed both hands to use tools. • Hominines also evolved much larger brains.
ANSWER: Essential Question • Of all the adaptations we learned in class, evaluate which one provides the greatest fitness to primates.