Colorado ranchers have raised questions about the limits of a decades-long effort to restore the apex predator to the U.S.

Yellowstone National Park has a bison population of about 3,000 to 6,000, and visitors need to avoid getting too close to them.

They once roamed in vast herds numbering in the millions across the Great Plains. Image viaJack Dykinga, Public domain, via Wikimedia Commons Bison cows give birth to one calf, which they nurse and ...

The National Park Service’s plan to increase bison herd sizes has drawn criticism from state officials concerned about disease transmission.

A deceased humpback whale was found in Kihei the morning of Jan. 3, prompting a response from the DLNR Division of ...

An orca who made international headlines in 2018 when she carried her dead calf with her for more than two weeks has now been photographed carrying another dead calf. J35, known by the nickname ...

An orca who made headlines in 2018 after she carried her dead calf on her head for more than two weeks and a distance of 1,000 miles has given birth again, according to the Center for Whale Research.

In December, news broke that Tahlequah, the orca who famously carried her dead calf for 17 days in 2018, had given birth again. Sadly, it appears that the new calf died as well. Now, the grieving ...

Researchers spotted Tahlequah the killer whale swimming with her new calf, J61, on Dec. 20. The baby whale died a little over a week later Sabienna Bowman is a Digital News Editor at PEOPLE ...

An endangered Pacific Northwest orca that made global headlines in 2018 for carrying her dead calf for over two weeks is doing so once again following the death of her new calf, in another sign of ...