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Author
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Topic: Will the human race split into two species?
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sfs
Member (Idle past 2560 days) Posts: 464 From: Cambridge, MA USA Joined: 08-27-2003
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Re: 802,701
quote:
Well, I mean that, aren't races sort of 'micro' versions of species?
Not really, no. Species evolve independently, because there is no significant gene flow between them. Races don't, because alleles move between them. In the case of humans, they move very freely.
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DemonScythe
Inactive Member
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Message 17 of 25 (364813)
11-20-2006 1:39 AM
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Reply to: Message 16 by sfs
11-19-2006 8:55 PM
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Re: 802,701
What about different species of beetles and such?
| This message is a reply to: | | | Message 16 by sfs, posted 11-19-2006 8:55 PM | | sfs has replied |
| Replies to this message: | | | Message 20 by sfs, posted 11-20-2006 6:16 AM | | DemonScythe has replied |
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Archer Opteryx
Member (Idle past 3624 days) Posts: 1811 From: East Asia Joined: 08-16-2006
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Re: 802,701
Race is imaginary, really--a conceptual category. No 'race gene' exists. It's a way of thinking about a number of human features as they seem to constellate in certain regions of the world. ___
Archer All species are transitional.
| This message is a reply to: | | | Message 11 by DemonScythe, posted 11-19-2006 2:48 PM | | DemonScythe has not replied |
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Archer Opteryx
Member (Idle past 3624 days) Posts: 1811 From: East Asia Joined: 08-16-2006
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Message 19 of 25 (364816)
11-20-2006 2:18 AM
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Reply to: Message 5 by Taz
11-17-2006 12:05 PM
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Everyone knows that the one world government has been sending out secret ninja squads to seek out and eliminate any individual who happens to carry a mutation that could potentially result in a new species emerging. Yes, and it still owes us back pay for all that overtime we put in last-- Oops. ___
Archer All species are transitional.
| This message is a reply to: | | | Message 5 by Taz, posted 11-17-2006 12:05 PM | | Taz has not replied |
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sfs
Member (Idle past 2560 days) Posts: 464 From: Cambridge, MA USA Joined: 08-27-2003
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Re: 802,701
quote:
What about different species of beetles and such?
Could you be more specific? What about different species of beetles and such?
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DemonScythe
Inactive Member
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Message 21 of 25 (364835)
11-20-2006 6:56 AM
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Reply to: Message 20 by sfs
11-20-2006 6:16 AM
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Re: 802,701
I'm not sure about this, but can different species of beetle breed? Edited by DemonScythe, : No reason given.
| This message is a reply to: | | | Message 20 by sfs, posted 11-20-2006 6:16 AM | | sfs has replied |
| Replies to this message: | | | Message 22 by sfs, posted 11-20-2006 7:24 AM | | DemonScythe has not replied |
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sfs
Member (Idle past 2560 days) Posts: 464 From: Cambridge, MA USA Joined: 08-27-2003
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Re: 802,701
quote:
'm not sure about this, but can different species of beetle breed?
I don't know about beetles, but members of closely related species can often breed successfully. They just do so rarely enough to have minimal effect on the species' evolution. If they interbreed more than that, then they aren't different species, by definition.
| This message is a reply to: | | | Message 21 by DemonScythe, posted 11-20-2006 6:56 AM | | DemonScythe has not replied |
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lost-apathy
Member (Idle past 5445 days) Posts: 67 From: Scottsdale, Az, USA Joined: 04-24-2005
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Message 23 of 25 (365470)
11-22-2006 5:13 PM
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Reply to: Message 15 by jar
11-19-2006 8:46 PM
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Well, if we ever colonize another planet it will almost certainly lead to speciation.
Think we will ever colonize another planet? If so which one? I honestly think it is inevitable for the human race to survive.
| This message is a reply to: | | | Message 15 by jar, posted 11-19-2006 8:46 PM | | jar has replied |
| Replies to this message: | | | Message 24 by jar, posted 11-22-2006 5:15 PM | | lost-apathy has not replied | | | Message 25 by anglagard, posted 11-22-2006 6:07 PM | | lost-apathy has not replied |
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jar
Member (Idle past 420 days) Posts: 34026 From: Texas!! Joined: 04-20-2004
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colonies?
I hope so. I have always hoped that we would have at least one permanent colony established during my lifetime. But that is looking less and less likely.
Aslan is not a Tame Lion
| This message is a reply to: | | | Message 23 by lost-apathy, posted 11-22-2006 5:13 PM | | lost-apathy has not replied |
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anglagard
Member (Idle past 863 days) Posts: 2339 From: Socorro, New Mexico USA Joined: 03-18-2006
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Lost-Apathy writes:
Think we will ever colonize another planet? If so which one? As for near term bets, only Mars and Mercury would be candidates as Venus is too inhospitable without significant terraforming. Mercury of course offers no atmosphere or water but does have plentiful solar energy along with solar radiation, so get used to caveman living. Mars probably has a very little water and less solar energy, so bring your own fissionable products. Gas giants such as Jupiter, Saturn, Uranus, and Neptune have no solid surface and are too great a gravity well for leaving at will. The moon will be first. The best prospect IMO to support a large population with eventual independence from the source planet would be Ganymede (pictured in Avatar). It has plenty of ice (water), rock and enough gravity to keep one from a complete wasting away of muscle and bone. Underground living would of course be required due to lack of atmosphere and protection from those nasty cosmic rays. Colonization in space with artifical gravity is possible but would require constant links to other bodies for any establishment and expansion. Such different environments would eventually lead to speciation because birth and maturity in a lower gravity field would likely mean you can't go home again.
| This message is a reply to: | | | Message 23 by lost-apathy, posted 11-22-2006 5:13 PM | | lost-apathy has not replied |
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