From the passage it can be inferred that the call pulse rate of male northern elephant seals in the southern rookeries was faster because:

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Question :

From the passage it can be inferred that the call pulse rate of male northern elephant seals in the southern rookeries was faster because:

Started 9 months ago by Shashank in

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A.
a large number of male northern elephant seals migrated from the southern rookeries to Año Nuevo Island in the early 1970s.
B.
the male northern elephant seals of Isla Guadalupe with faster call pulse rates might have been the original settlers of the southern rookeries.
C.
the calls of male northern elephant seals in the southern rookeries have more sophisticated structures, containing doublets and triplets.
D.

a large number of male northern elephant seals from Año Nuevo Island might have migrated to the southern rookeries to recolonise them.

Option B is the correct answer.

Explanatory Answer

Note the observation in paragraph 4: “At other sites, where the scientists found faster pulse rates, the opposite would have happened—seals with faster rates would have happened to arrive first.”