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Stories from Sara Hashemi

Chimpanzees in Uganda's Kibale National Park love eating figs, which scientists found had the highest level of alcohol at the site.

Chimps Consume the Equivalent of 2.5 Alcoholic Drinks per Day by Eating Fermented Fruit, Study Finds

Scientists report that chimpanzees consume about 14 grams of alcohol daily and suggest the result might help explain humans’ interest in booze

The annual average concentration of PM 2.5 expected in 2050. 

Wildfire Smoke Will Likely Kill Thousands More Americans Each Year

A new analysis finds that 30,000 more Americans are expected to die from wildfire-smoke exposure annually by 2050

Subtly different brain areas light up in response to viewing certain colors, a new study suggests.

Do We See the Same Colors as Others? Study Suggests Brains Respond to the Same Hues in Similar Ways

Using MRI scans, researchers found that participants’ patterns of brain activity were alike when looking at certain colors. But people can still experience those colors differently

Saturn will be at its brightest on September 21. 

Here’s How to See Saturn at Its Best and Brightest This Month

The giant planet will enter opposition, when the Earth will be between Saturn and the Sun, this weekend

A common octopus (Octopus americanus) raises its arm in southern Florida.

Scientists Map the Ways Octopuses Use Their Complex Arms, Revealing Preferences for Certain Tasks

The cephalopods appear to favor using their front arms, according to a new study, though their back arms help with locomotion

The Perseverance rover sampled Cheyava Falls, a rock with "leopard spots," on Mars last year.

NASA Discovers ‘Clearest Sign’ Yet of Ancient Life on Mars in a Rock Studied by the Perseverance Rover

Minerals in the rock might have been produced by microbes in chemical reactions, but researchers say they’ll need to examine the sample more closely to know for sure

GRB 250702B was spotted in July.

Astronomers Discover Unusual, Long-Lasting Gamma-Ray Explosion Outside Our Galaxy That Appeared Several Times Throughout a Day

The burst seems to have been caused by a highly extraordinary event, but scientists don’t yet know exactly what that could be

A juvenile spotted ratfish. These deep-sea fish are named for their long, rat-like tails.

This Deep-Sea Fish Has Teeth on Its Forehead—and It Uses Them for Sex

Researchers suggest the rows of pointed structures on the heads of spotted ratfish are true teeth, offering the first known example of teeth located outside the jaw

A solar flare with the Earth for scale.

Solar Flares May Be Way Hotter Than Researchers Previously Thought

Scientists recalculated the temperature of solar flares using modern data and new models

A new study examines how bees adapt to build honeycombs on top of various 3D-printed foundations.

Bees Manage to Build the Best Honeycombs, Even on Imperfect Foundations

In a new study, scientists tested how honeybees adapt to construct their hives on 3D-printed foundations of varying sizes

Bison graze near the north entrance of Yellowstone National Park in Gardiner, Montana.

Restoring Bison to Yellowstone Has ‘Reawakened’ the Ecosystem as the Large Animals Migrate, Study Suggests

An analysis of plant diversity and soil health across the bison migration corridor suggests free-roaming bison lead to more nutrient-rich plants

The James Webb Space Telescope, with data from the Atacama Large Millimeter/submillimeter Array, together captured the dusty core of the Butterfly Nebula.

See the Stunning Butterfly Nebula in a New Image From the James Webb Space Telescope

The observations offer an unprecedented look at the center of the nebula, which is shrouded in a band of dust

An artist's depiction of the newly discovered "quadruple system" within the Milky Way. In it, two brown dwarfs orbit each other at the right, and together, they orbit a pair of red dwarf stars at the left.

Astronomers Spot a Rare Quadruple Star System in the Milky Way, Shedding Light on Mysterious Brown Dwarfs

The discovery can help astronomers better understand these little-known objects nicknamed “failed stars”

An artist's reconstruction of what Spicomellus afer would have looked like.

Oldest Known Fossil of an Armored Ankylosaur Is ‘Far Weirder’ Than Paleontologists Expected

The 13-foot dinosaur, covered in long spikes fused into its bones, suggests ankylosaurs developed tail weapons 30 million years earlier than thought

The teeth specimens were collected from discarded teeth at the Sealife Oberhausen aquarium in Germany.

Sharks’ Teeth Could Suffer Damage as Ocean Acidification Intensifies, Study Suggests

Higher concentrations of carbon dioxide in the atmosphere are leading to a drop in ocean pH, a change that might eventually make it harder for sharks to eat their prey

An artist's rendition of CHIME and its Outriggers across North America localizing the radio burst.

Astronomers Spot the Brightest Fast Radio Burst Ever Detected and Observe Stars Around Its Origin for the First Time

Using two telescopes, scientists were able to pinpoint the location of the fleeting phenomenon with surprising accuracy

The American robin was among the birds most affected by light pollution.

Light Pollution Is Making Days Longer for Birds, Extending the Hours When They’ll Sing

A new study looked at millions of recordings of birdsong and found that some species in areas with more light pollution are active for almost an hour longer than average

A bottlenose dolphin is seen "bow riding," or swimming just in front of a humpback whale, potentially getting a boost from the wave created by the larger mammal.

Whales and Dolphins Interact More Often Than Scientists Thought, Engaging in Mutual Play, Study Suggests

Researchers analyzed nearly 200 videos and photographs documenting interactions between the various kinds of cetaceans

The khipu examined in the study, found to be made with a primary cord of human hair

A Lock of Braided Human Hair Could Change How We Think About Inca Society and Record-Keeping

The khipu knot-tying system was thought to have only been used by elites, but one artifact suggests commoners, too, knew how to use it

Researchers dissected nearly 500 post-mortem birds from five Australian species, including the rainbow lorikeet (species pictured above).

Sex Reversal Is More Common in Birds Than Previously Thought, Suggests Study of Australian Species

Researchers find that about 5 percent of birds studied have a mismatch between genetic and physical sex—including one male bird that seems to have laid an egg

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