All of the following can be inferred from Le Boeuf’s study as described in the passage EXCEPT that:
Started 2 months ago by Shashank in
Explanatory Answer
According to the passage, over time, with migrations, the calls regressed to the average pulse rate of the founder colony in Isla Guadalupe. The passage does not indicate that the influx of new northern elephant seals into Año Nuevo Island would have made the call pulse rate of its male seals exceed that of those at Isla Guadalupe.
All other options can be inferred:
Option A: “At the individual level, the pulse of the calls stayed the same: A male would maintain his vocal signature throughout his lifetime.”
Option C: “This led Le Boeufvand his collaborator, Lewis Petrinovich, to deduce that the dialects were, perhaps, a result of isolation over time, after the breeding sites had been recolonized.”
Option D: “In the decades that followed, scientists noticed that the geographical variations reported in 1969 were not obvious anymore.”
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