Organisms have been evolving to adapt to changing environmental conditions ever since life on Earth began. Those species that ...

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 ...

Australia can lay claim to two new species of native rodent thanks to a new study. The aptly named delicate mouse was previously thought to be a single species spanning a massive stretch of the ...

Pacific pocket mice are geographically isolated, but the species may retain the genetic diversity needed to adapt to climate ...

What makes the oldfield mouse steadfastly monogamous throughout its life while its closest rodent relatives are promiscuous? The answer may be a previously unknown hormone-generating cell. Scientists ...

The adrenal glands of a Deer mouse (left) and Oldfield mouse (right), showing the relative size of the zona fasciculata (green) and the novel zona inaudita (red). NEW YORK, NY — What makes the ...

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 ...

Forty years ago, a postdoctoral researcher named James McGrath who would go on to spend more than three decades as a clinical geneticist and research scientist at Yale, made a discovery that advanced ...

Add Yahoo as a preferred source to see more of our stories on Google. As of 2021, the American Society of Mammalogists has recognized 2,277 different species of rodents, making up 35% to 40% of all ...

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 ...

This week, Science Advances will publish a new study on climate adaptation in the Pacific pocket mouse—North America's most endangered mouse. The ...

The skin over a fresh wound might not look like much. In some animals, though, that thin covering becomes command central for ...