The use of pesticides has decreased in the US by more than 40 percent since 1992, but the emergence of more-potent chemicals means that they are far more damaging to many species.

In a new study, human and mouse cells recognized only one in five bacterial species collected from more than a mile below the Pacific Ocean’s surface.

The animals kill off around one-quarter of the neurons in their somatosensory cortex, perhaps to save energy, and the cells appear to return the following summer.

The Boston University professor, who died of complications related to COVID-19, spent more than 40 years researching the lives of bats.

Most small amphibious mammals have a diminished sense of smell, a quality that likely arose because of a tradeoff with thermoregulation capacities that allowed them to conserve heat in aquatic environments.

Thin strands tend to be stronger than thick ones.

An ancient animal’s hammer, anvil, and stirrup bones are at the base of the jaw but completely detached from it.

The silver-backed chevrotain was undetected for decades, but local reports have led researchers to document the species on camera.

The site, Corral Bluffs in Colorado, also reveals how plants evolved and how ecosystems rebounded after the asteroid impact.

Geography plays a role in how the small mammals adapt to environmental changes.

The agency plans to stop funding virtually all toxicology studies in mammals by 2035.

Researchers isolate roundworm DNA from animal excrement that is about 17,000 years old.

Researchers use a CRISPR-Cas9 strategy to expand a desired trait from 50 percent of mouse pups to about 72 percent.

Researchers describe the remains of a clutch of extinct mammal-like animals.

It’s the first demonstration of the technology in mammals.

Species with larger pancreatic cells tend to have shorter lives, according to a study.  

While shifts in behavior could help wildlife and people coexist, they might also affect the animals’ survival.

Numbers of the wildcat, greater mouse-eared bat, and black rat have critically fallen in the U.K.  

The Texas Tech University professor also investigated the effects of the Chernobyl disaster on surrounding wildlife.