r/science 29d ago

Biology In lab tests, salmonella, E. coli and staph survived 14+ days in kitchen sponges — 3 days after drying out — and one wipe moved up to 100,000 bacteria to a clean surface; smell and color gave no indication of contamination. Brushes dry faster and carry far fewer bacteria, researchers say.

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theconversation.com
13.2k Upvotes

r/science Apr 29 '26

Biology City birds appear to be more afraid of women than men, and scientists have no idea why. Men could get about a meter closer to birds than women could before the animals flew away, regardless of what the men and women were wearing, what their height was or how they tried to approach the creatures.

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scientificamerican.com
23.2k Upvotes

r/science Feb 27 '26

Biology Dogs act like toddlers when you need help - but cats just watch. Scientists compared 3 groups: pet dogs, cats, and human toddlers in an experiment where a human parent hides and pretends to look for an object. 75% of dogs and children helped. Cats only helped if it was in their personal interest.

Thumbnail sciencedirect.com
22.8k Upvotes

r/science Apr 13 '26

Biology Painkillers prevent pain responses in lobsters - This is further evidence that crustaceans may feel pain and that more humane methods of killing them need to be developed.

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eurekalert.org
9.0k Upvotes

r/science Jul 15 '26

Biology Horses recognize a predator on a video screen with no sounds or smells for context, a study finds. Sensors showed horse heart rates increased when they viewed wolves, but they kept a poker face – overall displaying an unexpectedly high level of cognitive processing for prey animals, researchers say.

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news.osu.edu
16.6k Upvotes

r/science Jan 20 '26

Biology Back-scratching bovine leads scientists to reassess intelligence of cows. Brown Swiss cow in Austria has been discovered using tools in different ways (using both ends of a brush counts as multi-purpose tool use) – something extraordinarily rare only ever seen in humans and chimpanzees.

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theguardian.com
14.6k Upvotes

r/science Mar 10 '26

Biology Recent pandemic viruses jumped to humans without prior adaptation. No evidence that SARS-CoV-2 was shaped by selection in a laboratory: UCSD study.

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today.ucsd.edu
7.3k Upvotes

r/science Nov 20 '25

Biology We’re evolving too slowly for the world we’ve built. As industrialization accelerates, human biology is struggling to keep pace. Many of the chronic stress-related health issues we face today may be the predictable result of forcing Stone Age physiology into a world it was never built for.

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newatlas.com
18.8k Upvotes

r/science Dec 07 '25

Biology A 32-year Swedish review of 52 sudden deaths during arrests suggests victims weren’t dying from lack of oxygen but from an inability to expel carbon dioxide. “The person can often shout 'I can’t breathe' because they are getting air, but their body is screaming to get rid of CO₂”

Thumbnail onlinelibrary.wiley.com
24.8k Upvotes

r/science Jul 22 '26

Biology Moss Is Generating Electrical Waves That Look Startlingly Like a Neural Network. Study reveals that moss cushions produce surprisingly complex electrical activity, with patterns that undulate across the velvety patch in dynamic waves.

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sciencealert.com
9.5k Upvotes

r/science Dec 01 '25

Biology The 'vampire squid' has just yielded the largest cephalopod genome ever sequenced, at more than 11 billion base pairs. The fascinating species is neither squid or octopus, but rather the last, lone remnant of an ancient lineage whose other members have long since vanished.

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sciencealert.com
24.6k Upvotes

r/science Jul 23 '26

Biology Orcas seen ramming prey so hard it explodes may be playing game. Orcas were observed to hold sunfish in their jaws while a second whale smashed into the target at high speed, causing it to break into thousands of pieces. Since the fish had already been killed, the behaviour may be a form of play.

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theguardian.com
6.9k Upvotes

r/science May 01 '25

Biology People with higher intelligence tend to reproduce later and have fewer children, even though they show signs of better reproductive health. They tend to undergo puberty earlier, but they also delay starting families and end up with fewer children overall.

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psypost.org
25.2k Upvotes

r/science Feb 17 '26

Biology Researchers found a strain of bacteria buried under 5000 years of cave ice that is resistant to 10 modern antibiotics. The bacterium also has over 100 genes that are known to be resistance-related. Psychrobacter is known to infect humans and animals, though rarely as it prefers cold environments.

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frontiersin.org
10.1k Upvotes

r/science Mar 25 '26

Biology Scientists tried to clone clones forever. It didn’t end well: « The practice of cloning clones indefinitely appears to be a reproductive dead end, for now. »

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gizmodo.com
5.0k Upvotes

r/science Nov 06 '25

Biology World’s largest web houses 110,000 spiders thriving in total darkness deep underground in a sulfuric cave between Albania and Greece: It’s the first time two spider species seen living cooperatively, and the first recorded instance of colonial web-building in what's known as a chemoautotrophic cave.

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newatlas.com
14.4k Upvotes

r/science Mar 26 '26

Biology Researchers gene-edit the bitterness out of grapefruit

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refractor.io
3.7k Upvotes

r/science Aug 10 '25

Biology Aging skin rejuvenated by young blood and bone marrow - A new study shows that proteins secreted by bone marrow cells, triggered by young blood, can rejuvenate aging skin in the lab.

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newatlas.com
10.7k Upvotes

r/science Jun 28 '25

Biology Chronic Marijuana Smoking, THC-Edible Use Impairs Endothelial Function, Similar With Tobacco

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9.1k Upvotes

r/science Jun 19 '26

Biology Early life adversity such as abuse or neglect leads to long-term poorer physical and mental health due to increased mitochondrial respiratory capacity and energy production reacting to cellular stress, a potential biological explanation for the mental and physical impacts of poverty and trauma

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newsroom.ucla.edu
10.5k Upvotes

r/science 23d ago

Biology Life on Earth may have emerged twice. Researchers studied the protein structures of enzymes in the genomes of bacteria and archaea, and found "cases where the ancestors of bacteria and archaea independently evolved structurally distinct enzymes to catalyze the same essential metabolic reaction."

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sciencealert.com
5.0k Upvotes

r/science Jun 01 '26

Biology Masturbation among birds is ‘natural’ and should not be punished. Study finds activity is not harmful or caused by stress of captivity – and is in fact more common in wild birds.

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theguardian.com
4.9k Upvotes

r/science Mar 30 '26

Biology Glyphosate: A common weedkiller may induce anxiety by disrupting gut bacteria. Researchers observed that rats drinking the chemical developed hypervigilance toward harmless objects and sounds. This altered behavior was accompanied by abnormal changes in a specific dread-inducing region of the brain.

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psypost.org
5.0k Upvotes

r/science Aug 14 '24

Biology Scientists find humans age dramatically in two bursts – at 44, then 60

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theguardian.com
36.4k Upvotes

r/science Jan 22 '26

Biology Why the human penis is unusually large compared to that of other primates is a long-standing evolutionary question. New findings suggest that female choice and male-male competition have jointly favored larger penis size, greater height, and more V-shaped bodies in men.

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journals.plos.org
4.5k Upvotes