Arafel: Video of Remarkable Teaching Behaviour Exhibited by Off-Shore Orca Pod.
Quote; "the whale is carrying the shark upside down in its mouth. That is intentional and intended to suffocate the shark, she said.“They
go into something called catatonic immobility,” Giles said of sharks.
“If they are turned upside down, they just stop moving. It's a chemical
reaction that happens . . . and that's what the whale's doing. It's
pretty smart.”
Giles
said it is likely that the adult offshore killer whale is exhibiting
teaching behavior as it swims with the shark in its mouth, then passes
it on to another whale with the calves nearby." Go to: https://www.washingtonpost.com/news/speaking-of-science/wp/2016/12/19/drone-video-captures-killer-whales-eating-a-shark-alive/?postshare=6691482198431086&tid=ss_tw-bottom&utm_term=.60f7ee645d45 For full article and video.
Arafel: #RIP World's oldest known killer whale Granny dies
She was the focal point of a recent BBC documentary that followed biologists' study of her clan of orcas, an effort to unravel an evolutionary mystery.
Studying female orcas, which live long beyond their reproductive years, has revealed insights into the menopause.
Menopause mystery
Only three mammals are known to experience menopause - orcas, short-finned pilot whales and humans. Even our closest ape cousins, chimpanzees, do not go through it. Their fertility peters out with age and, in the wild, they seldom live beyond childbearing years.
Following Granny and other matriarch killer whales has shown their crucial role within the family group. They guide the pod as it forages, take care of other females' young calves and even feed the larger males." Go to: http://www.bbc.co.uk/news/science-environment-38496164 For full article.
Also see: http://www.azula.com/granny-oldest-orca-world-dies/
Arafel: #RIP World's oldest known killer whale Granny dies
Quote; "The world's oldest known killer whale, affectionately known as Granny, is missing and presumed dead, researchers say.
Estimated to be over 100 years old, the matriarch's official name was J2.She was the focal point of a recent BBC documentary that followed biologists' study of her clan of orcas, an effort to unravel an evolutionary mystery.
Studying female orcas, which live long beyond their reproductive years, has revealed insights into the menopause.
Menopause mystery
Only three mammals are known to experience menopause - orcas, short-finned pilot whales and humans. Even our closest ape cousins, chimpanzees, do not go through it. Their fertility peters out with age and, in the wild, they seldom live beyond childbearing years.
Following Granny and other matriarch killer whales has shown their crucial role within the family group. They guide the pod as it forages, take care of other females' young calves and even feed the larger males." Go to: http://www.bbc.co.uk/news/science-environment-38496164 For full article.
Also see: http://www.azula.com/granny-oldest-orca-world-dies/
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