An extraordinarily well-preserved dinosaur tail, with a fluffy covering of feathers, has been trapped in a piece of amber for 99 million years. Researchers from China and Canada identify it as a juvenile of some type of coelurosaur, a birdlike dinosaur that walked on two legs.
At first, the biologist Richard Lenski thought his long-term experiment on evolution might last for 2,000 generations. Nearly three decades and over 65,000 generations later, he’s still amazed by evolution’s “awesome inventiveness.”
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Scanners show that canine brains respond to words like humans.
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Here are seven cardinal principles that could guide an action campaign against obesity, based on lessons that have proved successful in advocacy for tobacco control.
Trump's proposal to eliminate NASA's climate research program is "a shockingly stupid move that would deal a very severe blow to global research on environmental change across the world."
We all have a sense of space and time, but evolution has not given us an intuition about just how vast they are compared to our direct experience.
Arctic sea ice has not only been shrinking in surface area, it’s become younger and thinner. In this NASA animation, the ice cover almost looks gelatinous as it pulses through the seasons.
Influenza kills around 36,000 people annually in the U.S. but they are the least effective of all our vaccines. The influenza virus is constantly changing, and there is a lot of guesswork involved in choosing which strains to use in each year’s vaccine.The benefit to the population depends on individuals getting the vaccine. They may not benefit personally, but they indirectly benefit others by reducing transmission rates in the community and increasing herd immunity.
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