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Feathered friends: researchers unveil bird 'family tree'

Feathered friends: researchers unveil bird 'family tree' | enjoy yourself | Scoop.it
By Will Dunham WASHINGTON (Reuters) - Scientists have unveiled the most comprehensive bird 'family tree' ever devised, using genetic data from 48 species to trace how modern bird lineages arose and flourished after the mass extinction that killed off the dinosaurs. The work by researchers from 20 countries helps clarify the evolutionary relationships of modern bird groups and reveals the genetic underpinning of traits such as singing, toothlessness, colorful feathers and color vision. ...
Kenneth Weene's insight:

Imagine that hummingbird outside your window, that robin singing, that parrot talking trash: all the wonder of birds. Now thing they all survived and were descended from the dinosaurs. Wow! Will they survive man? Will we cause another mass extinction?

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Why do we have blood types?

Why do we have blood types? | enjoy yourself | Scoop.it
More than a century after their discovery, we still don’t really know what blood types are for. Do they really matter? Carl Zimmer investigates.
Kenneth Weene's insight:

A fascinating and informative read. And, yes, there is discussion about the blood type diet fad.

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Study suggests genetic link for male homosexuality

Study suggests genetic link for male homosexuality | enjoy yourself | Scoop.it
A large study of gay brothers adds to evidence that genes influence men's chances of being homosexual. But the results aren't strong enough to prove it.
Kenneth Weene's insight:

Is there anyone left who doesn't know that homosexuality is the result of genetics and not some choice? Well, anyone outside of places like Uganda and the American religious right where they don't believe that God actually works through the laws of science?

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