In each cell of your body, DNA is stored in structures called chromosomes. When cells divide, these chromosomes are copied, but over time, the copying process degrades. After many cycles of making copies, the ends of the ...
Cell & Microbiology
11 minutes ago
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A new study by plant biologists at the University of California, Santa Cruz, challenges a longstanding idea that stems from the large number of flowers in the mountains of Central and South America that have evolved to be ...
Evolution
31 minutes ago
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New research shows Cheviot goats are one of the UK's most genetically distinct goat populations. Led by Newcastle University, this is the first genetic study to determine the ancestry and genetic health of a UK feral goat ...
Plants & Animals
51 minutes ago
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When an asteroid struck Earth about 66 million years ago, it ended the age of dinosaurs and transformed life across the planet. The effects of that catastrophe are visible in the fossil record on land, but scientists know ...
Paleontology & Fossils
1 hour ago
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1
Bison are political animals. A federal decision to revoke grazing leases for bison on public lands on the rolling plains of eastern Montana is the latest manifestation of long-standing contention. The largest land animal ...
Plants & Animals
1 hour ago
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3
Northwestern Medicine scientists have discovered that little-studied DNA structures play a central role in organizing the human genome and controlling gene activity, according to a new study published in the Proceedings of ...
Cell & Microbiology
1 hour ago
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3
A fossil bed in northwestern China is littered with the remains of hundreds of prehistoric birds—including some whose broken bones were crushed into pellets, similar to those coughed up by modern owls. For years, scientists ...
Paleontology & Fossils
3 hours ago
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10
On a hot afternoon in California wine country, the sun can do more than warm a vineyard. It can scorch it. When temperatures climb above 100°F, grape clusters can heat to nearly 140° in direct sunlight. The berries shrivel. ...
Ecology
3 hours ago
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4
In a new study, bumble bees solve a completely novel object-manipulation task. What makes this behavior especially remarkable is that the bees had never been trained. The findings challenge the long-standing assumption that ...
Plants & Animals
3 hours ago
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9
Newly described aquatic insects, belonging to the genus Hydropsyche, are helping close substantial knowledge gaps regarding the biodiversity of Azerbaijan, Iran, and Türkiye. Caddisflies (order Trichoptera) are vital components ...
Plants & Animals
3 hours ago
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