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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 ...

Researchers present first fossilized 'emperor' butterfly

Butterfly fossils are rare, and finds that preserve fine anatomical details and wing patterns are an absolute exception. An international research team from Sweden, the U.S., and Germany, led by Dr. Hossein Rajaei, lepidopterist ...

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Evolution
A 500-million-year-old clawed predator rewrites the origin of spiders and horseshoe crabs
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
Plants & Animals
Rare sperm whale birth and coordinated caregiving revealed by drone footage and underwater audio

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Biochemistry
How surface chemistry impacts the performance of malaria nets
Mathematics
Mathematical signature spots when competition is fair, winner-take-all, or too soft
Earth Sciences
Deadly heat thresholds have already being crossed in six recent heat waves, study shows
Archaeology
No more giants, no more heavy handaxes: Why early humans downsized their stone tools
Plants & Animals
Ant larvae control parental care by using odor signals
Cell & Microbiology
Examining embryo model ethics beyond box-checking
Earth Sciences
Rock bonding changes understanding of earthquake mechanics
Environment
High levels of forever chemicals found in Svalbard reindeer
Soft Matter
New AI method flags fluid flow tipping points before simulations break down
Astronomy
What if dark matter came in two states?
Archaeology
Ancient Māori remains point to largely plant-based diets before colonization
Molecular & Computational biology
One DNA letter can trigger complete sex reversal
Optics & Photonics
Single-shot imaging captures more information about ultrafast microscopic processes than previously possible
Space Exploration
Houston, we have a problem ... with the toilet
Earth Sciences
Why treelines don't simply rise with the climate
Ecology
Soundscapes from nearby forests are more uplifting than those from faraway places, research suggests
Plants & Animals
The lengths male octopuses go to protect the arm they need to mate
General Physics
AI trained like a Rubik's Cube solver simplifies particle physics equations
Plants & Animals
Ecuador study finds tropical rainforest biodiversity rebounds over 90% in 30 years
Earth Sciences
AMOC collapse could turn Southern Ocean into carbon source, adding 0.2°C to global warming