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Evolutionary origins of coral sex unraveled

Washington, Aug 3 (ANI): Scientists at University of Guam Marine Lab have uncovered the evolutionary origins of coral sex.

In a new study, researchers have found that ancient corals consisted of mostly separate sexes and needed to pass through an evolutionarily period in which they brooded their young before they could become spawning hermaphrodites.

"Most species of corals on tropical reefs are hermaphrodites and participate in one of nature's most amazing spectacles, an annual mass spawning in which shallow moonlit waters rapidly fill with a 'blizzard' of brightly colored eggs," said Alexander Kerr, senior author of the study.

"The evolutionary origins of coral sex turn out to be surprisingly complex. The reason for this round-about pathway from separate sex to hermaphrodite is uncertain, but is likely related to the rigors of existence on shallow, tropical reefs," she added.

The study has been published in the Proceedings of the Royal Society B. (ANI)
 
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Genetically mixed populations can help understand human diversity, origins: Expert

Washington, February 15 (ANI): A Penn State physical anthropologist says that genetic diseases and genetically mixed populations can prove useful in understanding human diversity and human origins."We wanted to get to a strategy to predict what a face will look like. We want to understand the path of evolution that leads to that part of the selection process," said Mark D. Shriver, associate professor of biological anthropology.He revealed that with an eye on pinpointing genes that influence the.....
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