Science In Action

Science In Action

BBC World Service

The BBC brings you all the week's science news.

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With mice being the latest species to carry the disease, pandemic expert Rick Bright calls for stronger counter measures. “It’s like PTSD from February 2020” he says. The authorities in the USA are responding too slow to the spread of H5N1 bird flu through its dairy farms – even mice are carrying the virus now, and not enough is known of how it is evolving and whether humans are threatened. He talks Roland through the complex political and public health issues.

Child sacrifices in the Mayan empire a thousand years ago have been confirmed with DNA evidence from bones recovered in the 1960s from an underground pit. Some victims were twins, possibly indicating a brutal ritualistic re-enactment of an ancient myth involving divine twins. Geneticist Rodrigo Barquera describes the analysis.

Mature orchids perform a unique form of offspring-care, feeding tiny seedlings with nutrients via networks of thread-like fungal hyphae in the soil, according to experiments conducted at Sheffield University. Mycologist Katie Field has been delving into this underground sustenance network.

Geoscientists at the edge of the Arctic ocean are looking for ancient clues to the stability of the Atlantic circulation that brings critical warmth to Europe and the northern hemisphere. Could past changes help unravel the influence of global warming? Roland talks to Renata Lucchi in the control room of Research Vessel JOIDES Resolution.

Presenter: Roland Pease Producer: Alex Mansfield Production Co-ordinator: Jana Bennett-Holesworth

(Image: Mouse sitting on grain. Credit: SAEED KHAN/Getty Images)

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