There's a surge in cases and deaths from H5N1 bird flu in Cambodia - we hear what's the driver and how concerned we should be. Erik Karlsson, Head of Virology at the Pasteur Institute in Phnom Penh and director of the WHO’s H5 Reference Laboratory has been watching the uptick.An interstellar interloper has been spotted entering our solar system. Most likely a comet, and possibly visible in the sky, it’s just the third such visitor we’ve ever seen. Josep Trigo of Spain’s Institute of Space Sciences (CSIC) and the Catalan Institute for Space Studies is one of many astronomers keeping his eye out.DNA from an ancient Egyptian buried in cave 2,500 BCE, the oldest to date, tell a tale of travelling ancestors, according to research led by Adeline Morez of Liverpool John Moore’s University and published in Nature.Also, Corey Allard of Harvard university has been looking at a particular type of sea slug. Published in the journal Cell, the work has been trying to work out how these slugs effectively nurture and manage stolen chloroplasts – stolen from ingested plant cells - within their own bodies. Artfully, they may use these “Kleptoplasts” to dodge periods of food shortage. Presenter: Roland Pease
Producer: Alex Mansfield
Production Coordinator: Jazz GeorgePhoto Credit: Institut Pasteur du Cambodge

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