Comments on: Global Warming Could Bring Single-Sex Doom to Ancient Reptile

By: tu anciana abuela

tu anciana abuela — Sun, 21 Dec 2008 19:25:27 +0000

There were mammals, insects, fish. They didn´t disappear because of the meteorite.

Did they?????

By: AdventureEcology » Blog Archive » ADVENTURE ECOLOGY NEWS

AdventureEcology » Blog Archive » ADVENTURE ECOLOGY NEWS — Fri, 11 Jul 2008 15:04:32 +0000

[...] Find out more [...]

By: Bystander

Bystander — Tue, 08 Jul 2008 09:59:43 +0000

“maybe that was the reason why ALL saurus disappeared”

What? You don’t like geological evidence for the ‘meteor theory’? :)

By: tu anciana abuela

tu anciana abuela — Fri, 04 Jul 2008 17:28:46 +0000

maybe that was the reason why ALL saurus disappeared.

By: Ancient » Blog Archive » Global Warming Could Bring Single-Sex Doom to Ancient Reptile

Fri, 04 Jul 2008 02:01:15 +0000

[...] Global Warming Could Bring Single-Sex Doom to Ancient Reptile On a scattering of small islands off the north coast of New Zealand, members of an ancient reptile species are currently scuttling around, oblivious to the impending doom that researchers predict for them. … [...]

By: Blair Mitchelmore

Blair Mitchelmore — Thu, 03 Jul 2008 13:34:52 +0000

“Wouldn’t the females that did hatch carry on whatever genetic quirk let them hatch under normally adverse conditions to their offspring? If that was the case wouldn’t genetic lines of these reptiles develop that flourish under the warmer temperatures while the other lines die off?”

Evolution does not work that way!

Seriously though, it wouldn’t be genetic quirk that causes females to be born. The probability of being born female among reptiles is related to the temperature at which the eggs develop. It’s possible though unlikely that some mutations could occur which cause some reptiles’ eggs’ sex to no longer be related to temperature but given that that’s been happening for millions of years, the sudden shift could take the species off guard and screw them over.

Unless I’m taking out of my ass, which is entirely possible.

By: Sam

Sam — Thu, 03 Jul 2008 07:17:51 +0000

Wouldn’t the females that did hatch carry on whatever genetic quirk let them hatch under normally adverse conditions to their offspring? If that was the case wouldn’t genetic lines of these reptiles develop that flourish under the warmer temperatures while the other lines die off?

By: As the Mercury Rises, Female Tuatara Could Disappear | Discoblog | Discover Magazine

Wed, 02 Jul 2008 22:17:35 +0000

[...] See more DISCOVER coverage of the tuatara here. [...]