Which observations led Darwin to establish a relationship between extinct and living animals? Select all that apply. Birdwing butterflies were found throughout the Malay archipelago, but species differed slightly from island to island. The fossilized remains of giant sloths were found in places where smaller sloths now live. Tortoises from different Galapagos islands have distinct shells. Bird families clustered geographically: cockatoos in the Malay Archipelago and Australia, macaws and hummingbirds in the Americas. The bony shells of armadillos resembled the shells of ancient Glyptodon fossils. Mockingbirds from different Galapagos islands had subtle, consistent differences.
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Breeding butterflies were found throughout the Malay archipelago, but species differed slightly from island to island. This observation shows that species can evolve and adapt to different environments, which supports the relationship between extinct and living Show more…
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