The battle to save world's largest tree

The largest tree in the world - a 275-foot General Sherman - was among a grove of ancient sequoias wrapped in fire-proof blanks Thursday to spare them from blazes tearing through the Western U.S. 

Dolphin spotted playing with swimmers is killed by boat

A dolphin which went viral on social media playing and jumping around a group of swimmers in Cornwall last month has died after being struck by a boat.

Study finds primate mothers express sorrow over the death of an infant

Primate mothers who suffer the death of an infant grieve by carrying the corpse with them — sometime for months after the tragedy — a study has concluded.

Let's protect precious Baluchi black bear

There are eight species of bears in the world, including Asiatic black bears, brown bears (which include grizzly bears), giant pandas, North American black bears, polar bears, sloth bears, spectacled bears (also called Andean bears), and sun bears.