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.

The discovery of two new species within the Cynomops genus has expanded the total known number of dog-faced bat species to eight.