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Virgin birth found in wild vertebrates
Snake
First time "evolutionary novelty" found in wild animals

Researchers in the US have found a form of virgin birth in wild vertebrates for the first time, after genetically analysing pregnant females from two snake species.

They found that North American pit vipers reproduced without a male in a phenomenon called facultative parthenogenesis, previously only found in captive species, and scientists say the findings could change our understanding of animal reproduction and vertebrate evolution.

Thought to be extremely rare for normally sexual species, asexual reproduction was first identified in domestic chickens and, in recent years, reported in a few snake, shark, lizard and bird species.

However, all such "virgin births" have occurred in captivity to females kept away from males, and have in general been considered "evolutionary novelties."

Professor Warren Booth, from the University of Tulsa, Oklahoma, worked with a team to investigate virgin births in copperhead and cottonmouth female pit-vipers, where males were present.

Professor Booth, lead author of the paper published in the Royal Society's Biological Letters, said of the: "I think the frequency is what really shocked us. That's between 2.5 and 5% of litters produced in these populations may be resulting from parthenogenesis."

He added: "That's quite remarkable for something that has been considered an evolutionary novelty."

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News Shorts
UC Davis welcomes first fellow in small animal infectious disease

Dr. Polina Vishkauutsan has joined the UC Davis Veterinary Medical Teaching Hospital as the world's first fellow in small animal clinical infectious diseases.

The fellowship, which lasts for one year, will provide Dr. Vishkautsan with unique training opportunities in both the clinical and microbiology laboratory environments at the VMTH, and will prepare her to persue future career opportunities in academic practice, private practice or industry.

A graduate of Hebrew University's Koret Veterinary School, Dr Vishkauutsan will be taught by infectious disease specialist and Small Animal Clinic Director Dr. Jane Sykes.

Dr. Vishkauutsan said: "I feel very privileged to be able to go through this training programme, "I am learning from the best people in veterinary medicine at a point in my career that otherwise I would not be able to do it again, unless I signed up for another residency."