Boulder police are warning people in their Colorado community after a mountain lion attacked and killed a dog.

Human populations continue to creep up "dramatically" as well, making encounters with big cats even more likely, according to Lynn Cullens, executive director of the Mountain Lion Foundation.

A holidaymaker got the surprise of her life when a sea lion pup climbed onto a human sun deck for a snooze by her feet only to be followed moments later by its cranky, growling mum. Ainslie Maher, ...

Following the deaths or abandonment of five sea lion pups at La Jolla Cove, members of the Sierra Club and its Seal Society ...

Photo: CC0. Just days ago, a lion killed a human camper in Namibia.A tragedy for family members of the deceased camper. May they find peace. Now, the context.

A video showcased a group of men relocating a lion into a game reserve, highlighting how they were on edge. The clip went viral, sparking laughter and reactions.