Taking into consideration the evolutionary difference between ape and human mothers,why would apes be less likely to carry their infants than humans?

Question

Quizplus · Accepted Answer

Apes are not fully bipedal and still need to use their arms for locomotion. This means that they are less likely to carry their infants and are more likely to leave them on the ground or in trees while they move around. In contrast, humans have evolved to be fully bipedal and can carry their infants while walking or running.

Taking into Consideration the Evolutionary Difference Between Ape and Human