KILLER WHALEORCINUS ORCAPANTROPICALSPOTTED DOLPHINSTENELLA ATTENUATAPREDATIONSEXUAL DIMORPHISMIn June 1994, we observed a herd of killer whales (Orcinus orca) attack a school of pantropical spotted dolphins (Stenella attenuata) in the Gulf of Mexico. The killer whales cut out up to three dolphins ...
The scientist who led the description of this behaviour, Robert Pitman, said he regards it as “inadvertent altruism” based on a simple rule of thumb:“When you hear a killer whale attack, go break it up.”These accounts raise interesting questions about the motivations behind orcas attacking...
see+宾语+宾补As we drew closer, I could see a whale (attack)by a pack of about six other killers.当我们靠近些时,我能看到一条鲸鱼正在被其他大约六条虎鲸袭击。stop sb./sth.(from)doing sth.;现在分词短语作伴随状语"…And those others are stopping it (dive) or (file) out to sea, " ...
Swift and ferocious animals, armed with more than four dozen sharp teeth, killer whales are the only cetacean (see whale) that feeds regularly on birds or mammals. Killer whales may eat seals, sea birds, and fish, and in packs they may even attack larger whales. The female gives birth to...
number oforcasslammed into the vessel with two people on board and caused a water leak, officials said. Both crew members were rescued by a passing oil tanker, said Spain's maritime rescue service, marking the latest killer whale attack on a boat in what has become a pattern in recent ...
Killer Whales Attack and Eat a Gray Whale Alan Baldridge N Nov 被引量: 0发表: 2008年 A Killer Whale: Gray Whale Encounter As early as 100 BC, Nazca Natives of Peru built temples dedicated to killer whale gods and used killer whale designs to symbolize power, courage and fertility. The ...
"I saw them look at boats carrying fish.I think they know humans are somehow related to food shortages," says Ken Balcomb,senior scientist at the Center for Whale Research in Washington,USA.(一些人认为,这可能是由于过度捕捞蓝鱼金枪鱼的结果,蓝鱼金枪鱼是虎鲸的主要食物来源,...
Define Killer cells. Killer cells synonyms, Killer cells pronunciation, Killer cells translation, English dictionary definition of Killer cells. n. Any of various lymphocytes, such as cytotoxic T lymphocytes and natural killer cells, that kill infected o
hunting skills and voice communication of killer whales are considered as evidence of their own culture. They are predators, fierce temperament, good at attacking prey, penguins, seals and other animals are natural enemies. Sometimes they attack other cetaceans, even great white sharks, which can ...
I think they know humans are somehow related to food shortages," says Ken Balcomb, senior scientist at the Center for Whale Research in Washington, USA. The environmentalists believe the sudden increase in boat ...