The New York Times, September 21, 2021

Link

For half a billion years or so, our ancestors sprouted tails. As fish, they used their tails to swim through the Cambrian seas. Much later, when they evolved into primates, their tails helped them stay balanced as they raced from branch to branch through Eocene jungles. But then, roughly 25 million years ago, the tails disappeared.

Charles Darwin first recognized this change in our ancient anatomy. But how and why it happened has remained a mystery.

Continue reading “How Humans Lost Their Tails”

The New York Times, September 21, 2021

Link

A second dose of Johnson & Johnson’s vaccine substantially increased its protection against Covid-19, the company announced Tuesday morning.

In a clinical trial, researchers found that two doses of the vaccine delivered 94 percent efficacy against mild to severe Covid-19 in the United States, up from 74 percent conferred with a single shot, the company reported. And two shots showed 100 percent efficacy against severe disease, although that estimate had a wide range of uncertainty.

Continue reading “An extra J. & J. shot substantially boosts protection against Covid, the company reports.”

The New York Times, September 13, 2021

Link

A team of scientists and entrepreneurs announced on Monday that they have started a new company to genetically resurrect the woolly mammoth.

The company, named Colossal, aims to place thousands of these magnificent beasts back on the Siberian tundra, thousands of years after they went extinct.

“This is a major milestone for us,” said George Church, a biologist at Harvard Medical School, who for eight years has been leading a small team of moonlighting researchers developing the tools for reviving mammoths. “It’s going to make all the difference in the world.”

Continue reading “A New Company With a Wild Mission: Bring Back the Woolly Mammoth”

The New York Times, August 25, 2021 (with Sharon LaFraniere)

Link

As vaccine makers set their sights on boosters, new studies unveiled on Wednesday from Johnson & Johnson and Pfizer-BioNTech demonstrated that extra shots can dramatically raise antibodies against the coronavirus.

The companies said they were submitting the new data to the Food and Drug Administration for evaluation, and Pfizer has formally asked the agency to authorize a booster shot. The Biden administration said last week that it wants to provide booster shots for all Americans eight months after vaccination.

Continue reading “Extra Shots from J. & J. and Pfizer Give Immune Boost, Companies Report”

The New York Times, August 5, 2021

Link

Novavax, the Maryland company that won $1.6 billion from the U.S. government last year to develop a Covid vaccine, on Thursday announced that continued production problems would delay the vaccine’s use in the United States until the end of the year.

But the two-shot vaccine, which performed well against the virus in clinical trials, might soon be used in other parts of the world. In partnership with the Serum Institute of India, Novavax has applied for emergency authorization in India, Indonesia and the Philippines, the company announced on an earnings call.

Continue reading “Novavax is still struggling to produce its vaccine”