Later they care for the younger chicks for longer, and are aggressive with the older offspring.

A female often has an older offspring with her to help in socializing the infant.

Possibly, they were two of Io's oldest and most powerful offspring.

Occasionally there may be overlapping litters, with older offspring remaining while new babies are being cared for.

But she said rafting was an almost sure bet with older offspring, whose enthusiasm for family adventures can be, well, measured.

He was too young to have offspring "25 summers" old.

The older offspring tend to be lowest in the rank.

His oldest offspring have also reached the S level.

Mothers would bite or lift the older offspring roughly by its skin, which sometimes caused open wounds.

Adult males, females other than the mother, and older offspring, participate in carrying infants.