“Other encounters include an attack on a pygmy sperm whale, predation on a northern elephant seal and Risso’s dolphin, and what appeared to be a post-meal lull after scavenging a leatherback turtle.”Related Story Grieving Orca Mom Swims with Dead Calf for Days...
Marine biology. Killer whales earn their nameThe article discusses research reported by Lance Barrett-Lennard and colleagues in a January 2011 issue of "Marine Ecology Progress Series" on the killing of gray whale calves by killer whales as the former migrate with their mothers to the Aleutian ...
“Some whale stocks, such as blue whales, are in need of protection, but a blanket moratorium is not scientifically justified,” says Morishita. He calls the moratorium “emotionally and politically inspired”, and contrary to the treaty establishing the commission, which requires that whale stocks...
We present the current available knowledge about sexual behavior and mating systems in the killer whale, Orcinus orca, focusing primarily on the most well-studied ecotype, the Residents of the eastern North Pacific. Resident killer whales display lifetime natal philopatry of both sexes and thus for...
If you have any interest in cetaceans or marine biology more generally, this absorbing book comes recommended. 1 of 1 found this helpful - Was this helpful to you? Yes No Biography Hanne Strager (Copenhagen, Denmark) is a biologist, whale researcher, and the future Director of Exhibitions ...
marine biology science animals New Evidence of Menopause in Killer Whales July 14, 2021 Scientists have found new evidence of menopause in killer whales – raising fascinating questions about how and why it evolved.Most animals breed throughout their lives. Only humans and four whale species are ...
1969 . Addition of the leatherback sea turtle to the known prey of the killer whale orcinus-orca . Journal of Mammalolgy 50: ... SD Whiting,AU Whiting - 《Chelonian Conservation & Biology》 被引量: 21发表: 2011年 Some thoughts regarding the possible effect of oil contamination on the ...
Peiman, K. S. & Robinson, B. W. Ecology and Evolution of Resource-Related Heterospecific Aggression.The Quarterly Review of Biology85, 133–158 (2010). ArticleGoogle Scholar Jefferson, T. A., Stacey, P. J. & Baird, R. W. A review of Killer Whale interactions with other marine mammals...
after whale rose under the ice, setting it rocking fiercely; luckily Ponting kept his feet and was able to fly to security. By an extraordinary chance also, the splits had been made around and between the dogs, so that neither of them fell into the water. Then it was clear that the ...
The credibility of the killer whale hypothesis has been damaged by a second published hypothesis to explain the inferred shift in killer whale diet from larger marine mammals to sea otters. The “serial depletion” hypothesis argues that commercial whaling in past decades in the North Pacific region...