In June, 100 fruit fly scientists gathered on the Greek island of Crete for their biennial meeting. Among them was Cassandra Extavour, a Canadian geneticist at Harvard University. Her lab works with fruit flies to study evolution and development — “evo devo.” Most often, such scientists choose as their “modelContinue Reading

“I believed then and I believe now that those contacts are of high importance,” he said in an email. “However, what Putin and the Russian military have done in the name of the Russian Federation is so egregious that I strongly support the CERN Council’s decision.” What all this meansContinue Reading

WASHINGTON — Prominent social media users and conservative voices have amplified a baseless theory promoted by Russian state media accusing the United States of funding biological weapons laboratories in Ukraine. There is no evidence to support the claims, which President Volodymyr Zelensky of Ukraine, the White House, the Pentagon andContinue Reading

Seek and you shall find In any other context, it would have been unremarkable: On Sunday, Nov. 28, a San Francisco resident who had been feeling mildly ill took a Covid test. The next day, it came back positive. What set off alarm bells, however, was that the resident hadContinue Reading

NTUZUMA, South Africa — A few months ago, Sizakele Mathe, a community health worker in this sprawling hillside township on the edge of the city of Durban, was notified by a clinic that a neighbor had stopped picking up her medication. It was a warning sign that she had likelyContinue Reading