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The necks of giraffes are the closest extant equivalent to the necks of sauropod dinosaurs. Two ...

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The necks of giraffes are the closest extant equivalent to the necks of sauropod dinosaurs. Two ...

The necks of giraffes are the closest extant equivalent to the necks of sauropod dinosaurs.

Two hypotheses have been proposed to explain the functional significance of the necks of giraffes, and those hypotheses can be applied to the necks of sauropods: Competing browsers hypothesis-The long neck makes more food resources available to a giraffe or sauropod by allowing it to reach upward to browse on vegetation that is not available to short-necked browsers. Necks-for-sex hypothesis-Males giraffes and sauropods use their necks and heads to batter opposing males during intraspecific combat. Thus, long necks increase the fitness of males by increasing their opportunities to mate. What predictions can you make about the relative lengths of the necks of male and female sauropods to test these hypotheses?

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Helped a lot

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