In mammals such as rodents that raise their young as a group, infants will nurse from their mother as well as other females, a dynamic known as allosuckling. Ecologists have long hypothesized that ...

At birth, a blue whale calf weighs as much as an adult elephant. It will grow at a phenomenal rate, gaining around 10 pounds an hour or 250 pounds a day. This is possible because of its mother, whose ...

When women are pregnant and nurse their babies, their bodies change and various organs, such as the breasts or the immune system, are adapted to ensure the health of both mother and child. This ...

When women are pregnant and nurse their babies, their bodies change and various organs, such as the breasts or the immune system, are adapted to ensure the health of both mother and child. This ...

Male care has energetic and opportunity costs, and is more likely to evolve when males gain greater certainty of paternity or when future mating opportunities are scarce. However, little is known ...

In mammals such as rodents that raise their young as a group, infants will nurse from their mother as well as other females. Ecologists have long thought this lets newborns stockpile antibodies to ...