Both parents of oldfield mice care for offspring, whereas in deer mice, mothers usually care for pups. The discovery of a type of adrenal-gland cell that is present in oldfield mice but not in deer ...

In the animal kingdom, there are far more mammals that are polyamorous than are monogamous. In fact, just three to five percent of mammals are monogamous, and researchers have long wondered what ...

A mouse scurries up to six chestnuts. Three look healthy. Three have exit holes where moth larvae ate the insides before they left. What does the mouse do? For two years, Nagoya University researchers ...

Basic ecology uses simple diagrams to illustrate how biomass is distributed in ecosystems. These “ecological pyramids” lump all primary producers (plants) at the base of the pyramid. The second level ...