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Peacock

peacock

1. (Science: zoology) The male of any pheasant of the genus pavo, of which at least two species are known, native of southern asia and the East Indies.

The upper tail coverts, which are long and capable of erection, are each marked with a black spot bordered by concentric bands of brilliant blue, green, and golden colours. The common domesticated species is pavo cristatus. The Javan peacock (P. Muticus) is more brilliantly coloured than the common species.

2. In common usage, the species in general or collectively; a peafowl.

(Science: zoology) Peacock butterfly, any one of several species of handsome Asiatic pheasants of the genus Polyplectron. They resemble the peacock in colour.

Origin: OE. Pecok. Pea- in this word is from AS. Pea, pawa, peacock, fr. L. Pavo, prob. Of Oriental origin; cf. Gr, Per. Taus, tawus, Ar. Tawus. See Cock the bird.


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Evolving non "life-or-death" but useful characteristics

... cats, do they have more expressive eyebrows than cats? Pick a really non-social animal and check them for eyebrows. Also, consider the eyes on a peacock's tail. I have heard the theory (don't know if its true) that perhaps in the past, peacocks as a population had to deal with some eye disease, ...

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by Rap
Tue Jul 03, 2012 6:13 am
 
Forum: Evolution
Topic: Evolving non "life-or-death" but useful characteristics
Replies: 5
Views: 5145

Re: Peacock

So OK I've hit a point that most people studying biology must encounter at some point. But what exactly is the purpose of the peacock's tail? I've heard arguments that it's an example of sexual selection, however I've also seen research that females will equally chose males with reasonably ...

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by animartco
Mon Jan 23, 2012 12:49 pm
 
Forum: Evolution
Topic: Peacock
Replies: 3
Views: 2223

Peacock

So OK I've hit a point that most people studying biology must encounter at some point. But what exactly is the purpose of the peacock's tail? I've heard arguments that it's an example of sexual selection, however I've also seen research that females will equally chose males with reasonably ...

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by jebus197
Thu Jan 19, 2012 10:14 pm
 
Forum: Evolution
Topic: Peacock
Replies: 3
Views: 2223

Re: Question, Need Help!

Sounds like the peacock conundrum. A peacock with a big tail has better mating success, but makes it less capable of escaping predators. Perhaps a brightly coloured guppy is too easily spotted by predators and most simply do not live ...

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by skeptic
Fri Mar 04, 2011 12:09 am
 
Forum: Ecology
Topic: Question, Need Help!
Replies: 2
Views: 2163

A question about sexual selection!

an Excellent overview without too much confusing technical details can be found in "The Ant And The Peacock" by Helena Cronin Wikipedia is an excellent source of common misconceptions

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by BDDVM
Sat Nov 27, 2010 7:42 pm
 
Forum: Zoology Discussion
Topic: A question about sexual selection!
Replies: 4
Views: 7413
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