Family quarrels in seeds reveal the ways parents and offspring sometimes evolve in conflicting directions
Monday, April 22, 2019 - 14:30
in Biology & Nature
It's spring, finally—and in the tree branches a battle is brewing. A robin returns to her nest with an earthworm. Her nestlings all beg, but only one will get this meal. And while Mom has an interest in making sure that all of her babies thrive, each little bird is more selfish. So the baby opens his beak again and again: give me more!