New Research

A mathematical model suggests coarser grinds might make for better, more consistent espresso with a lower price tag.

Mathematically Speaking, You’re Probably Grinding Your Espresso Too Finely

The secret to consistently tasty, cost-effective espresso is a coarser grind, according to mathematical models

Researchers in India studied whether 160 stray dogs would react to commands like gesturing toward a bowl. This image, taken in 2012, shows street dogs surrounding an Indian tea vendor in Allahabad.

Stray Dogs May Understand Human Signals, Too

A new study has found that strays in India, when presented with two covered food bowls, were more likely to approach the one an experimenter pointed toward

An image of asteroid 2020 AV2, taken on January 8, 2020 by the Elena robotic unit part of the Virtual Telescope Project

Astronomers Spot First Asteroid Nearer to the Sun Than Venus

Such “intervenusian” rocks are both rare and difficult to detect

Ginkgo trees, which produce characteristic fan-shaped leaves, can live for thousands of years.

A Genetic Elixir of Life Helps Millennia-Old Ginkgo Trees Escape Death

These trees have developed an army of molecular weapons to stay healthy in old age

The classic 98.6 degrees Fahrenheit has always been contested but authors of the new study say the figure is probably right and human body temperatures have actually decreased over time.

Human Body Temperature Is Getting Cooler, Study Finds

Our average normal temperature may no longer be 98.6 degrees Fahrenheit

In 2019, the average temperature across global land and ocean surfaces was 0.95 degrees Celsius (1.71 degrees Fahrenheit) above the 20th century average.

The 2010s Were the Hottest Decade on Record. What Happens Next?

The news hasn’t come as a surprise to climate scientists, but all urge immediate action

Researcher Alexandra Green, recording cows

Cows Communicate With Unique Moos

A new study has found that the animals use distinct vocalizations across a range of emotional contexts

The high-status 16th-century woman (right) appears to have suffered from leprosy, a disfiguring disease that likely left its mark on her skin, tissues and bone.

Artists Reconstruct Centuries-Old Faces of Early Edinburgh Residents

Skulls uncovered beneath St. Giles' Cathedral gave faces to a 12th-century man and a 16th-century woman

The Heslington brain, revealed intact within a 2,600-year-old skull unearthed near modern day York, England

Super Resilient Protein Structures Preserved a Chunk of Brain for 2,600 Years

After death, most brains decompose within months or years. This one lasted millennia

Church ruins from Norse Greenland's Eastern Settlement

Did Over-Hunting Walruses Fuel the Collapse of Norse Greenland?

A new study has found that Norse hunters began pursuing smaller animals at increasingly risky distances in "a classic pattern of resource depletion"

An undated composite sketch of Joseph Henry Loveless, whose headless torso was found in a remote Idaho cave 40 years ago

DNA Evidence Identifies Headless Corpse in Cave as 1916 Axe Murderer

Joseph Henry Loveless murdered his wife with an axe more than 100 years ago. Now, his dismembered remains have been identified

Otzi carried 14 arrows in his quiver, but only two had arrowheads and feather fletching.

What We Can Learn From Ötzi the Iceman's Hunting Pack

The famed Copper Age mummy's bowstring is the world's oldest known specimen

An artist's illustration of juvenile Tyrannosaurus rex, which were more fleet-footed than their adult counterparts

Teenage T. Rex Fossils Reveal Haphazard Growth Spurts

A new study reaffirms that two debated dinosaur fossils named Jane and Petey weren’t a separate species

Researchers now have video evidence that Atlantic puffins can use sticks as tools to scratch their backs.

In a First, Scientists Film a Puffin Scratching Itself With a Stick

Behold the first evidence of tool use in seabirds

How many sheep?

Dogs’ Brains Naturally Process Numbers, Just Like Ours

Scientists stuck 11 dogs in fMRI scanners to see if their brains had a knack for quantity

Dead mussels along the Clinch River.

Scientists Don't Know Why Freshwater Mussels Are Dying Across North America

Mussel species are dying en mass in rivers across the Pacific Northwest, Midwest and South—likely from unidentified pathogens

No need to flee for this nasty little critter.

Some Moths Taste So Bad That They Don't Bother Fleeing From Bats

A new study offers an explanation as to why some moth species fly erratically in the face of danger, while others do not

An endangered White's seahorse.

Undersea 'Hotels' Deployed to Help Sydney's Endangered Seahorses

Captive breeding and microhabitats may help restore White's seahorse whose population plummeted 90 percent in the last decade

Despite similarities, doctors do not advise consuming fish antibiotics, which are unregulated.

Why Are Americans Taking Fish Antibiotics?

A new study investigated the online fish antibiotic market—and found that some humans seem to be ingesting them

The Elgin cast, seen on right, reveals sculptural details lost today.

3-D Imaging Reveals Toll of Parthenon Marbles' Deterioration

A new study of 19th-century plaster casts of the controversial sculptures highlight details lost over the past 200 years

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