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 ...

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 ...

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 ...

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 ...

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 ...

The wonderful world of tennis is helping nature’s tiniest mammals survive. Each year, following Wimbledon, thousands of used tennis balls are donated to UK Wildlife Trust. Volunteers at the ...

Adopting pet mice is a big moment for anyone. Although a mouse doesn’t have the same demands as a cat or dog, caring for one isn’t just a walk in the park. You need to consider factors like how many ...

To create mouse-rat "chimeras," researchers injected rat stem cells into mouse embryos that lacked some genes for brain development. Creative Touch Imaging Ltd. / NurPhoto via Getty Images 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 ...