In some species,the hippocampus is larger in males relative to females.What is one general characteristic that all these species tend to share?

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The fact that males have a larger hippocampus suggests that they may have better spatial memory and navigation abilities. This is a trait that would be advantageous in species that are polygamous, where males need to be able to navigate and remember the locations of multiple mates and territories. Therefore, the best choice is D, as species that are polygamous tend to have this difference in hippocampus size between males and females.

In Some Species,the Hippocampus Is Larger in Males Relative to Females.What