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Course: American Museum of Natural History > Unit 3

Lesson 1: Evolution: the basics (American Museum of Natural History)

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Exploration Questions: Evolution by natural selection

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Reflect on what you've learned in this lesson by responding to the exploration questions below.

1. What are endemic species? Why did Darwin focus on endemic species?

2. What were the three patterns that Charles Darwin observed on his voyage that led him to accept and form his ideas on evolution?

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Brad H.
Posted 9 years ago. Direct link to Brad H.'s post “1. Endemic species are s...”
1. Endemic species are species that are unique to a certain area through some type of isolation. Darwin focused on endemics because they could only be replaced by common ancestors when they died.
2. Replacement of species through geographical proximity, Micro-scale observations of replacement pattern on islands, and similarity in fossil record.
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(4 votes)
Answer
- makozeluh
  Posted 6 years ago. Direct link to makozeluh's post “They are those that belon...”
  They are those that belong to groups that occur nowhere else on the planet.
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  (2 votes)
msmclaurin72
Posted 8 years ago. Direct link to msmclaurin72's post “How long did it take Darw...”
How long did it take Darwin to REalize that evolution could have been a reality?
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(2 votes)
Answer
- makozeluh
  Posted 6 years ago. Direct link to makozeluh's post “20 years after his voyage...”
  20 years after his voyage on the Beagle.
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  (1 vote)