Celebrate Thanksgiving with some of the animal kingdom’s greatest cooks, including marshmallow-roasting apes and salt-sprinkling monkeys Jack Tamisiea In the tropical forests of Central and South ...

Leafcutter ant queens store sperm for several decades, slowly fertilizing eggs to create colonies of millions of worker-daughters. After mating with multiple males, they can halt sperm competition ...

The Butterfly Pavilion welcomed a new species of critter this month, and it’s already making itself at home. The new leafcutter ant exhibit showcases the lives of these invertebrates, who are known ...

In eusocial superorganisms like leafcutter ant colonies, labor is divvied up according to body shape and size, but Penn Integrates Knowledge University Professor Shelley Berger and her team discovered ...