Killer whale plays with dog on fishing boat
Luna the orca appears to tease a dog on a passing fishing boat
Cases of humans and killer whales striking up friendships are well known and have even been the subject of popular Disney films. Orcas bonding with canines, however, is another matter - although scientists have begun to think that virtually all mammals share a primitive communication system.
The video above shows the startling interaction between an Orca called Luna and a dog taking a ride on a passing fishing boat. The whale actively tries to "kiss" the dog and even rolls over onto her side in what an expert has called "submissive, playful behaviour".
The affection shown in this video highlights the drastic difference in temperament between orcas living in the wild and those in captivity. Tillikum, another killer whale, had been captured off the coast of Iceland in 1982 before spending almost 10 years in captivity. On February 20, 1991 he killed his trainer, 20 year-old Keltie Byrne, dragging her underwater by her ponytail and eventually drowning her.
Since the 1970s there have been over 20 incidents of killer whales attacking humans - all of them committed by orcas in captivity. ·