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What unusual adaptation is documented in marine iguanas during El Niño events?

A) improved digestion of brown algae
B) migration to Chile
C) a switch to eating bird eggs
D) body size shrinkage

1 Answer

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Final answer:

Marine iguanas undergo body size shrinkage as an unusual adaptation during El Niño events.

Step-by-step explanation:

During El Niño events, marine iguanas have been documented to undergo an unusual adaptation of body size shrinkage. This is because El Niño causes a decrease in marine productivity, leading to a scarcity of food, particularly the brown algae that marine iguanas feed on. As a result, the iguanas reduce their body size to conserve energy and survive with limited food resources.

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