Tapeworm in brain tissue (CDC) Biology Health 

Tapeworm Removed from Man’s Brain

Doctors in the UK recently removed a very rare tapeworm from a man’s brain that had been living there for four years. During its residency, the worm traveled five centimeters from one side of the brain to the other before it was detected and removed. Following the successful operation, a team took the opportunity to sequence the genome of this rare and poorly understood parasite. The tapeworm, Spirometra erinaceieuropaei, has been reported only 300 times worldwide since 1953 and never before in the UK. The parasite causes sparganosis: inflammation of…

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Sacramento Valley Red Fox (Ben Sacks, UC Davis) Biology Zoology 

Red Fox Genome Examined

Researchers at University of California, Davis are studying the genome of the red fox, the world’s most widely distributed land carnivore. Some surprising findings about the origins, journey and evolution of the red fox have come to light. The new genetic research suggests that the first red foxes originated in the Middle East before beginning their journey of colonization across Eurasia to Siberia, across the Bering Strait and into North America. Reproductively speaking, the red foxes of North America and Eurasia have been almost entirely isolated from one another for around 400,000 years.…

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