O*******d
发帖数: 20343 | 1 The ancestors of cetaceans are believed to have been the semiaquatic
pakicetids, no larger than wolves, of about 53 million years (Ma) ago.[11]
By 40 Ma ago, cetaceans had attained a length of 20 m or more in
Basilosaurus, an elongated, serpentine whale that differed from modern
whales in many respects and was not ancestral to them. Following this, the
evolution of large body size in cetaceans appears to have come to a
temporary halt, and then to have backtracked, although the available fossil
r... 阅读全帖 |
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W*****B
发帖数: 4796 | 2 I Weird & Wild I
Octopus Chokes Dolphin to Death in First-Ever Discovery
The young male, Gilligan, was in otherwise perfect condition, a new study
says.
Nobody ever told Gilligan the dolphin not to bite off more than he could
chew.
The male Indo-Pacific bottlenose dolphin is the first known cetacean to die
from asphyxiation by octopus, a new study says.
He "seems to have been extremely greedy and thought, 'You know what,
I’m going to swallow it whole,'" says study leader Nahiid Stephen... 阅读全帖 |
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n***d
发帖数: 8857 | 3 Japanese Government Covers Up Mercury Poisoning From Eating Dolphins
Tuesday, May 11, 2010, 10:48
Tokyo, Japan – For many years, Taiji, Japan has been a target of
international criticism due to its cruel mass capture and horrific slaughter
of mercury-contaminated dolphins and pilot whales, both for human
consumption and to supply captive marine mammal aquaria industry. Evidence
presented in the Academy Award winning film The Cove, and in University of
Hokkaido Professor Tetsuya Endo’s study... 阅读全帖 |
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c**i
发帖数: 6973 | 4 Angus Phillip, A True Adventure at Sea and on Shore. Wall Street Journal,
Mar
http://online.wsj.com/article/SB10001424052
748704506004576174323361155478.html?mod=WSJ_Books_LS_Books_8
(About the book Richard Henry Dana Jr, Two Years Before the Mast. 1840)
Note:
(a) forecastle (n):
"1: the forward part of the upper deck of a ship
2: the crew's quarters usually in a ship's bow"
All definitions are from www.m-w.com, except (f) and (i).
(b) The slug in "working slugs" (n): "SLUGGARD"
The latter is de... 阅读全帖 |
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P*****J
发帖数: 1745 | 7 照得真好啊，真是像箭一样射入水中。我以前以为入水速度顶多有个30-40mph，我刚查
了查，原来入水速度可以>100km/h(62mph)。想想车子在高速上开迎面的风有多大，以
那个速度扎入水中，乖乖。名副其实的水鸟中的战斗机。
Food Capture And Consumption
Opportunistic generalist predator on pelagic prey; feeds diurnally; may hunt
singly, but generally forages communally in large “frantic-flocks” of up
to 1,000 over shoals of prey fish. Although a generalist predator, Northern
Gannet is a feeding specialist whose unique combination of body mass, size,
and shape allow it to utilize, almost solely, a feedin... 阅读全帖 |
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w******0
发帖数: 1404 | 8 有人发信给我指出一些错误。特此转帖。不过依然有待证实。
至少我们争论的焦点，人脑方面应该是没有问题的。
处女膜并非人类独有。有处女膜的动物至少包括：Blesmols (Mole rats),
Chimpanzees, Elephants, Galagos (Bush babies), Guinea pigs, Horses, Humans,
Hyenas, Lemurs, Llamas, Manatees, Moles, Pigs, Rats, Seals, Whales, Dogs,
Snails, Stick Insects, Tapeworms, Ducks, Geese, Fish, Rabbits, and
Bluebottles
同样，人类并非唯一不具备阴茎骨的哺乳动物。不具阴茎骨的动物至少包括：humans,
equids, marsupials, lagomorphs, hyenas, and cetaceans (whales, dolphins, and
porpoises)
再次，人类也并非唯一能采用面交体位性交的动物。动物学家很早就知道倭黑猩猩(
Bonobo) |
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