World's oldest killer whale presumably dead at 105 years old
The world's oldest killer whale, fondly known as Granny, has not been seen since October and is presumed to be dead at an estimated age of 105 years. The female orca, also known by her official name J2, was being followed to study whale menopause. Only humans, orcas and short-finned pilot whales are known to undergo menopause among mammals.