Life
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We summarize the week's scientific breakthroughs every Thursday.
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LifeOrca moms baby their adult sons. That favoritism pays off — eventually
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.
By Susan Milius -
Health & MedicineHow fingerprints form was a mystery — until now
A theory proposed by British mathematician Alan Turing in the 1950s helps explain how fingerprint patterns such as arches and whorls arise.
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MicrobesSome ‘friendly’ bacteria backstab their algal pals. Now we know why
The friendly relationship between Emiliana huxleyi and Roseobacter turns deadly when the bacteria get a whiff of the algae’s aging-related chemicals.
By Elise Cutts -
LifeMammals that live in groups may live longer, longevity research suggests
An analysis of nearly 1,000 mammal species reveals that the evolution of mammals’ social lives and life spans could be linked.
By Jake Buehler -
AnimalsFish can recognize themselves in photos, further evidence they may be self-aware
Cleaner fish recognize themselves in mirrors and photos, suggesting that far more animals may be self-aware than previously thought.
By Betsy Mason -
AnimalsHere are 3 people-animal collaborations besides dolphins and Brazilians
Dolphins working with people to catch fish recently made a big splash. But humans and other animals have cooperated throughout history.
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LifeHow plant ‘muscles’ fold up a mimosa leaf fast
A mimosa plant revs up tiny clumps of specially shaped cells that collapse its leaflets, though why isn’t clear.
By Susan Milius -
AnimalsA newfound ‘croakless’ frog may communicate via touch
A newly discovered frog species in Tanzania joins a rare group of frogs that don’t croak or ribbit.
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AnimalsAre your cats having fun or fighting? Here are some ways to tell
Certain behaviors indicate if your cats’ interaction is friendly, aggressive or something in between, a new study finds.
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Life76 percent of well-known insects fall outside protected areas
Protected areas can provide safe havens for insects, but many existing ones fall short, a new study finds.
By Freda Kreier -
Science & SocietyHere are 7 new science museums and exhibitions to visit in 2023
The Grand Egyptian Museum is slated to open, as well as new exhibitions dedicated to space travel, the Galápagos Islands and more.
By Erin Wayman -
LifeA new metric of extinction risk considers how cultures care for species
Conservation efforts should consider relationships between cultural groups and the species important to them, researchers argue.
By Jude Coleman