Natural selection may have favored single births in so many primates because we evolved as tree-dwellers and could not effectively hold and protect more than one offspring.

Question

Quizplus · Accepted Answer

This statement is true. Many primates, including humans, evolved as tree-dwellers and had to navigate the branches while carrying and protecting their offspring. It would have been difficult to do this with more than one offspring at a time, which may have led to the evolution of single births being favored by natural selection.

Natural Selection May Have Favored Single Births in So Many