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Latest Headlines

02/16/2023

Insect bites in plant fossils reveal leaves could fold shut millions of years ago

Feb 15 2023 11:14 AM

The 252-million-year-old fossil leaves have symmetrical holes, which suggest an insect bit through the leaves when they were folded.

Rapid melting is eroding vulnerable cracks in Thwaites Glacier's underbelly

Feb 15 2023 11:00 AM

Thwaites is melting slower than thought, but the worst of it is concentrated in underbelly cracks, threatening the Antarctica glacier's stability.

Here's why icicles made from pure water don't form ripples

Feb 15 2023 8:00 AM

A new study explains why icicles made from pure water have irregular shapes rather than the ripples typical of the salty icicles found in nature.

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Why male giraffes drink potential mates' pee

Feb 14 2023 10:00 AM

In giraffes, an organ that detects pheromones has a stronger connection to the mouth than the nose. That's different from many other mammals.

The James Webb telescope spotted the earliest known 'quenched' galaxy

Feb 14 2023 8:00 AM

A galaxy dubbed GS-9209 ceased forming stars more than 12.5 billion years ago after a 200-million-year-long sprint.

Climate 'teleconnections' may link droughts and fires across continents

Feb 13 2023 9:00 AM

Far-reaching climate patterns like the El Niño-Southern Oscillation may synchronize droughts and regulate scorching of much of Earth's burned area.

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3-D maps of a protein show how it helps organs filter out toxic substances

Feb 13 2023 7:00 AM

Images of LRP2 in simulated cell environments reveal the structural changes that let it catch molecules outside a cell and release them inside.

A chemical imbalance doesn't explain depression. So what does?

Feb 12 2023 7:00 AM

The causes of depression are much more complex than the serotonin hypothesis suggests

Cockatoos can tell when they need more than one tool to swipe a snack

Feb 10 2023 11:00 AM

Cockatoos know when it will take a stick and a straw to nab a nut in a puzzle box. The birds join chimps as the only known nonhumans to use a tool kit.

This dinosaur might have used its feet to snag prey in midair like modern hawks

Feb 10 2023 8:00 AM

Fossilized toe pads suggest a hawklike hunting style in Microraptor, a dinosaur that some scientists think could hunt while flying.

Hominids used stone tool kits to butcher animals earlier than once thought

Feb 09 2023 2:00 PM

Finds in Kenya push Oldowan tool use back to around 2.9 million years ago, roughly 300,000 years earlier than previous evidence.

In the wake of history's deadliest mass extinction, ocean life may have flourished

Feb 09 2023 2:00 PM

Ocean life may have recovered in just a million years after the Permian-Triassic mass extinction, fossils from South China suggest.

Orca moms baby their adult sons. That favoritism pays off — eventually

Feb 09 2023 1:21 PM

By sharing fish with their adult sons, orca moms may skimp on nutrition, cutting their chances of more offspring but boosting the odds for grandwhales.

How fingerprints form was a mystery — until now

Feb 09 2023 11:00 AM

A theory proposed by British mathematician Alan Turing in the 1950s helps explain how fingerprint patterns such as arches and whorls arise.

The Kuiper Belt's dwarf planet Quaoar hosts an impossible ring

Feb 08 2023 11:00 AM

Quaoar's ring lies outside the Roche limit, an imaginary line beyond which rings aren't thought to be stable.

Some 'friendly' bacteria backstab their algal pals. Now we know why

Feb 08 2023 8:00 AM

The friendly relationship between Emiliana huxleyi and Roseobacter turns deadly when the bacteria get a whiff of the algae's aging-related chemicals.

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Thursday, February 16, 2023

Latest from Science News: Insect bites in plant fossils reveal leaves could fold shut millions of years ago