Doctor, you mentioned the ratio of ten women to each man. Now, wouldn't that necessitate the abandonment of the so-called monogamous sexual relationship, I mean, as far as men were concerned?
Posted on 01/08/2018 12:38:15 PM PST by Oldeconomybuyer
Green sea turtles do not develop into males or females due to sex chromosomes, like humans and most other mammals do. Instead, the temperature outside a turtle egg influences the sex of the growing embryo. And this unusual biological quirk, scientists say, endangers their future in a warmer world.
Already, some sea turtle populations are so skewed by heat that the young reptiles are almost entirely female, according to a new report in the journal Current Biology.
“This is one of the most important conservation papers of the decade,” said biologist David Owens, a professor emeritus at the College of Charleston who was not a part of this research. It will not be long, perhaps within a few decades to a century, until “there will not be enough males in sea turtle populations,” he warned.
The sex of a green sea turtle is a result of its environment. “They have temperature-dependent sex determination,” said Camryn Allen, a National Oceanic and Atmospheric Administration endocrinology researcher and co-author of the new study. “It’s not genetics. It’s actually the temperature.”
At what biologists call the pivot temperature, turtles hatch as a mixture of males and females. For green sea turtles, this temperature is 29.3 degrees Celsius (85 Fahrenheit). A few degrees below 29.3 C, all the sea turtles are born male. Heat up the eggs and only females are born.
“That transitional range, from 100 percent males to 100 percent females, spans a very narrow band of only a couple of degrees,” said NOAA marine biologist and study co-author Michael Jensen.
(Excerpt) Read more at washingtonpost.com ...
Doctor, you mentioned the ratio of ten women to each man. Now, wouldn't that necessitate the abandonment of the so-called monogamous sexual relationship, I mean, as far as men were concerned?
“Green sea turtles do not develop into males or females due to sex chromosomes, like humans and most other mammals do.”
Oops, that goes directly against the propaganda of “gender doesn’t exist”.
Washington Post accidentally admitted truth.
I’ve never seen a green sea turtle, and it’s not on my bucket list. So how exactly does this affect me?
“Climate change” is turning pseudoscience believers gay.
That's the way I would see it as well, as long as green sea turtles aren't monogamous. From a species survivability standpoint, it's better to have an excess of females than an excess of males.
It’s not climate change.
It’s manufactured estrogens in the water.
Send the bill to Big Pharma!
Good catch!
So the end result is nearly 2x more female turtles laying 2x more eggs and fewer but extremely happy male turtles getting a lot of love. What is not to like?
Warmer weather is good for productivity and therefor good for turtles, maybe this shift towards more remains in good times is adaptive?
That sounds fairly normal, in one sense. In another sense, though, the numbers should be equal (i.e., every time a male mates, so does a female; takes two to tango).
Male turtles and tortoises are pervy little horndogs.
Re: 99% Female
Any chance this will affect human beings?
If yes, this old boy wants to live forever!
Remember, colder=weather & warmer=climate.
ZW sex chromosomes. The ZW sex-determination system is found in birds, some reptiles, and some insects and other organisms. The ZW sex-determination system is reversed compared to the XY system: females have two different kinds ofchromosomes (ZW), and males have two of the same kind of chromosomes (ZZ).Sex-determination system - Wikipedia
https://en.wikipedia.org/wiki/Sex-determination_systemMeanwhile:
XX + XX = FAIL
XY + XY = FAIL
XX + XY = Human
Next?
All this article really says is that in the next few years the remaining male turtles are going to unusually satisfied.
In my next reincarnation...
It’s gotten them through the last 250,000,000 years.
Just a quick check on google shows that sea turtles have been around 65 million years. Another quick check shows that the estimated temp 65 million years ago was radically higher than today.
So now the alarming warming that is "on a pause" is threatening the species? Maybe its more like if you link something to climate change you get grant money.
Proof: http://www.abovetopsecret.com/forum/thread1060143/pg1
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