Geographical Location: Western

Researchers believe a cancer that has killed sea lions in California for years is linked to toxic chemicals in the water. After two decades of research, scientists concluded a previously...

As central California sea otters recover from past centuries of overharvesting, they’re gradually expanding into areas they historically occupied. By understanding which types of habitats support higher sea otter abundance,...

Most people don’t pay much attention to snails — especially when the pea-sized gastropods live on a rocky uninhabited islet in Hawaii and don’t even have a name. But Norine...

A Catalina Island shrew has made an appearance for the first time since 2004, confirming to biologists that the species is not extinct. The shrew appeared on a trail camera...

When scientists reintroduce animals to augment populations, they often take individuals from areas close to the reintroduction site. “There’s this idea to not move animals outside of their native population...

It’s a mystery of reintroduction. When Alaskan sea otters were moved from a nuclear testing site in the Aleutian Islands to the coasts of Washington and Oregon, the two translocated...

Invasive Abert’s squirrels may be passing harmful parasites to endangered native Mount Graham’s squirrels in Arizona. Ongoing research on these squirrels and the creatures that live off of them has...

Join the San Francisco Bay Chapter of The Wildlife Society on Nov. 9 and 16 in its first virtual workshop — Environmental Career Development. This career development workshop is applicable to anyone...

Highway 97 runs from California to the Canadian border along the spine of the Cascades. It crosses elk (Cervus canadensis), mule deer (Odocoileus hemionus) and pronghorn (Antilocapra Americana) ranges, resulting...

Wildfires that tore through California have killed up to 600 mountain lions, according to a recent estimate. Fires in the western state have burned more than 4 million acres of...