Saturday, October 25, 2014

Python parthenogenesis

Thelma (IMAGE ABOVE) shares an enclosure with Louise at the zoo in Louisville, Kentucky, U.S. Despite being a male-free zone, this 11-year-old reticulated python produced 6 offspring in June 2012. The female babies – dwarfed by their 200 lb. (91 kg), 20 ' (6 m) long mother – are all half-clones, with 3 retaining her intricate reticulated pattern, and the rest displaying a pattern of bright yellow with black stripes. The number of species capable of parthenogenesis or virgin births – snakes, birds, sharks, and other animals – continues to grow. Biologist Warren Booth of the University of Tulsa in Oklahoma observes, "It's something we used to consider an evolutionary novelty that's much more common than we thought."

No comments:

Post a Comment

You may add your comments here.