BlogArena

General blog about anything and everything of everyday's life.

22. Aug 2019

March 5, 2016
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Repurposed genes responsible for unique fins of skates and rays, study finds

The evolution of the striking, wing-like pectoral fins of skates and rays relied on repurposed genes, according to new research by scientists from the University of Chicago. Studying embryonic skates, they discovered that the rear portion of the fin is … Continue reading

February 7, 2015
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Modern genetics confirm ancient relationship between fins and hands

Paleontologists have documented the evolutionary adaptations necessary for ancient lobe-finned fish to transform pectoral fins used underwater into strong, bony structures, such as those of Tiktaalik roseae. This enabled these emerging tetrapods, animals with limbs, to crawl in shallow water … Continue reading

November 8, 2012
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Sharks: Bad Creatures or Bad Image?

EAST LANSING, Mich. — Historically, the media have been particularly harsh to sharks, and it’s affecting their survival. The results of a Michigan State University study, appearing in the current issue of the journal Conservation Biology, reviewed worldwide media coverage … Continue reading