Southern Europeans have North African genes

(Phys.org) —Southern Europeans are more genetically diverse than Northern Europeans. Geneticists have several different explanations for this phenomenon, one of which is migration from Africa to southern Europe. However, ...

Wildflower colors tell butterflies how to do their jobs

(PhysOrg.com) -- The recipe for making one species into two requires time and some kind of separation, like being on different islands or something else that discourages gene flow between the two budding species.

Study reveals origin of endangered Colombian poison frog hybrids

The origin of an understudied hybrid population of poisonous frogs—highly endangered colorful animals that live deep in the Colombian jungle—is the result of natural breeding and not caused by wildlife traffickers moving ...

Scientists link Neanderthal extinction to human diseases

Growing up in Israel, Gili Greenbaum would give tours of local caves once inhabited by Neanderthals and wonder along with others why our distant cousins abruptly disappeared about 40,000 years ago. Now a scientist at Stanford, ...

Using recent gene flow to define microbe populations

Identifying species among plants and animals has been a full-time occupation for some biologists, but the task is even more daunting for the myriad microbes that inhabit the planet. Now, MIT researchers have developed a simple ...

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