Science Cartoon "Climate Change Can Cause Animals to Switch Sex"
A team of ecologists lead by Professor Arthur Georges
has proven that temperature, not just genetics, plays a role in
determining the sex of Australian bearded dragons. Their findings were
published today in the journal Nature.
In humans, XX chromosome is found in women and XY in men. It is an established fact. Similarly for Australian lizards a ZZ/ZW system of chromosomal sex determination. A ZZ is male and a ZW is female. Prof. George and his team collected 131 samples of Australian lizards and found that 11 out of 131 samples collected were genetically male but anatomically female. Further, they found that they could reproduce and often became supermoms within their population. It means genetically male is behaving like anatomical mother. Such kind of mess up is credited to account of global warming. Whether it will be useful in terms of sustainability, adaptability and evolution are unknown.
Here I am presenting cartoon based on the above fact.
In humans, XX chromosome is found in women and XY in men. It is an established fact. Similarly for Australian lizards a ZZ/ZW system of chromosomal sex determination. A ZZ is male and a ZW is female. Prof. George and his team collected 131 samples of Australian lizards and found that 11 out of 131 samples collected were genetically male but anatomically female. Further, they found that they could reproduce and often became supermoms within their population. It means genetically male is behaving like anatomical mother. Such kind of mess up is credited to account of global warming. Whether it will be useful in terms of sustainability, adaptability and evolution are unknown.
Here I am presenting cartoon based on the above fact.
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