Động vật đang biến đổi giới tính vì ô nhiễm!


lượt xem

Thêm vào

Bạn chưa đăng nhập?

Hãy đăng nhập để sử dụng chức năng này nhé.

Đăng nhập
Chia sẻ

Ngày đăng: 05/08/2016

Chuyên mục: Kiến thức

What if our gender was determined by external temperature at a certain
point in fetal development? For these animals, this is the reality! How
Does Asexual Reproduction Work? - http://bit.ly/28NW9Cr Sign Up For The
Seeker Newsletter Here - http://bit.ly/1UO1PxI Read More: 'Third Sex'
Lizards Could Outcompete Their Normal Female Cousins
"Sex is never simple-even among lizards. Unlike mammals, the sex of
central bearded dragons, large lizards found in eastern Australia, is
determined by their chromosomes and the environment. If the eggs are
incubated in high temperatures, male embryos turn into females."
Fish With Temperature-Dependent Sex Determination: How Common Are They?
https://www.sciencedaily.com/releases/2008/07/080729234256.htm "In
vertebrates with separate sexes, sex determination can be genotypic or
temperature-dependent (TSD). TSD is very common in reptiles, where the
ambient temperature during sensitive periods of early development
irreversibly determines whether an individual will be male or female.
But just how common is this phenomenon in fish?" Climate Change
And Temperature-Dependent Sex Determination In Reptiles
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC44426/ "Despite
increasing concern over the possible impact of global temperature
change, there is little empirical evidence of direct temperature effects
on biotic interactions in natural systems. Clear assessment of the
ecological and evolutionary impact of changing climatic temperature
requires a natural system in which populations exhibit a direct
unambiguous fitness response to thermal fluctuation."
____________________ DNews is dedicated to satisfying your curiosity
and to bringing you mind-bending stories & perspectives you won't
find anywhere else! New videos twice daily. Watch More DNews on Seeker
http://www.seeker.com/show/dnews/ Subscribe now!
http://www.youtube.com/subscription_center?add_user=dnewschannel DNews
on Twitter http://twitter.com/dnews Trace Dominguez on Twitter
https://twitter.com/tracedominguez DNews on Facebook
https://facebook.com/DiscoveryNews DNews on Google+
http://gplus.to/dnews Discovery News http://discoverynews.com Download
the Seeker Daily App: http://testu.be/1ndmmMq Sign Up For The Seeker
Newsletter Here: http://bit.ly/1UO1PxI

Xem thêm