Speciation: Unprecedented number of hybrid sharks
|January 5, 2012||Posted by News under News, speciation|
In “Scientists: Dozens of hybrid sharks found off Australia” (CNN Light Years, January 2nd, 2012), Brad Lendon reports,
Australian researchers say they’ve found 57 animals that are a cross between the Australian blacktip shark and the common blacktip shark, two closely related but genetically distinct species.
Ovenden said the discovery is a first for sharks, and it could indicate that other shark and ray species may interbreed in reaction to climate change.
“Wild hybrids are usually hard to find, so detecting hybrids and their offspring is extraordinary. To find 57 hybrids along 2,000 kilometers of coastline is unprecedented,” Ovenden said.
And it raises questions that Darwin decency forbids us to pursue, right?
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