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'Oldest octopus' fossil is no octopus at all, scans reveal

A famous 300-million-year-old fossil that was thought to be the world's oldest octopus—even featuring in the Guinness Book of Records—has turned out to be something else altogether. In what amounts to a case of mistaken identity, ...

New spider species in the Amazon mimics parasitic fungus

An international research team, including the Leibniz Institute for the Analysis of Biodiversity Change (LIB), has described a new species of spider from the Ecuadorian Amazon: Taczanowskia waska. The species is characterized ...

Mutant clownfish reveals how nature draws boundaries

In 1999, a clownfish (Amphiprion ocellaris) hatched in the aquarium of a tropical fish hobbyist in the UK. These clownfish are prized by aquarists for their unique pattern of three straight white bars bordered by a thin black ...

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Evolution
A 500-million-year-old clawed predator rewrites the origin of spiders and horseshoe crabs
Evolution
Researchers present first fossilized 'emperor' butterfly
Evolution
Fins, fingers and toes: A new take on repeating body parts and how they come to be
Evolution
New model shows how behavioral flexibility affects animal evolution
Evolution
Free software lets laptops simulate how aging evolves under selection
Evolution
Millions-of-years-old insect symbioses are surprisingly fragile
Plants & Animals
Great hammerheads maintain peak hunting across wide temperature swings, biologging data suggest
Evolution
Parasites defy biodiversity rules, thriving far from the equator
Evolution
Ancient predator species discovered in South Africa challenges what we know about gorgonopsians
Evolution
Cornerstone model of evolutionary biology built on math flaw, study argues
Evolution
100 million years ago, an 'evolutionary fuse' was lit in the deep ocean, sparking squid diversification
Evolution
Tracing the evolutionary history of chemical warfare between plants and insects
Evolution
Limits of protein evolution could reshape ideas about early life
Evolution
New discoveries are showing how human anatomy is far from settled
Evolution
Ancient Neanderthal genome reveals isolated, distinct populations
Evolution
A mass mating event in the lab reveals how yeast cells choose partners
Evolution
Ancient DNA reveals earliest known dogs lived alongside Ice Age humans
Evolution
Land animals evolved from ocean ancestors—new study unravels the genetics behind the transition
Evolution
Masripithecus: A new Miocene ape from Egypt sheds light on the origins of modern apes
Evolution
Tale of the lava heron: Student describes new Galapagos species

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Social Sciences
Hat wars of early modern England reveal how manners make the rebel
Environment
Non-producing oil and gas wells may emit microbial methane at rates 1,000 times higher than previously estimated
Optics & Photonics
Megawatt structured light arrives with 3,070 optical vortices in one array
Cell & Microbiology
Unlocking the hidden metabolism of algae to advance the promise of renewable fuels and sustainable biomass
Plants & Animals
Chimpanzee empire falls apart in rare instance of division and deadly violence
Social Sciences
Integrative experiment design reveals hidden patterns in decades-old social science research
Biotechnology
AI diffusion models tailor drug molecules to custom-fit protein targets, speeding drug development and evaluation
Analytical Chemistry
Plant-inspired water membrane filters CO₂ with constant selectivity and adjustable permeance
Biochemistry
Nickel catalyst enables precision mirror-image assembly for key drug scaffolds
Archaeology
No more giants, no more heavy handaxes: Why early humans downsized their stone tools
Nanomaterials
Carbon nanotube fiber sensors achieve record measurement error below 0.1%
Ecology
Simple vineyard growing practice impacts soil microbiome deep below surface
Cell & Microbiology
Liquid-like histone H1 'glues' nucleosomes, reshaping how DNA compacts
Analytical Chemistry
Hydroxyl radicals in UV-exposed water reveal surprising reaction pathway
Plants & Animals
African swine fever: A novel model assesses transmission between domestic pigs and wild boar
Earth Sciences
Hidden ocean feedback loop could accelerate climate change
Molecular & Computational biology
A smarter way to build vaccines: Scientists harness AI to target emerging alphaviruses
Cell & Microbiology
Decoy molecules trick soil bacteria into attacking persistent pollutants without genetic engineering
Plants & Animals
Oxygen sensing helps explain why amphibians regenerate limbs but mammals cannot
Plants & Animals
How an internal plant 'thermostat' guides root growth in unpredictable temperatures

Snail genome duplication offers look at evolution in transition

A tiny freshwater snail from New Zealand is giving scientists a glimpse into evolution in motion. University of Iowa biologists have traced the snail's evolutionary history through its genome and discovered that the species ...