mice

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With Help From The Matrix, Scientists Map a Mouse Brain

Researchers create largest functional map of a brain to date, after having mouse watch video clips

(Newser) - Thanks to a mouse watching clips of The Matrix, scientists have created the largest functional map of a brain to date—a diagram of the wiring connecting 84,000 neurons as they fire off messages. Using a piece of that mouse's poppy seed-size brain, the researchers identified those neurons...

It's No Mammoth, but It Is Woolly
It's No Mammoth,
but It Is Woolly
NEW STUDY
Mar 5, 2025 7:35 AM CST

It's No Mammoth, but It Is Woolly

Colossal Biosciences shows off mouse with fur resembling a mammoth's

(Newser) - The company working to revive the woolly mammoth hasn't got there yet, but it has managed to create a "woolly mouse." Colossal Biosciences on Tuesday unveiled healthy mice genetically modified to withstand cold temperatures, which feature some distinctly woolly hair, though it's not yet clear whether...

Man Makes 'Crippling' Delivery to NH Animal Shelter

He dropped off 1K mice, which the New Hampshire SPCA is now trying to handle

(Newser) - A group of mice is called a nest, but what do you call 1,000 of them in one animal shelter? "Crippling," said Lisa Dennison, executive director of the New Hampshire Society for the Prevention of Cruelty to Animals, which is scrambling to care for an overwhelming influx...

Food Dye Used in Doritos Offers a 'Jaw-Dropping' Perk
Food Dye Used in Doritos
Offers a 'Jaw-Dropping' Perk
in case you missed it
Sep 8, 2024 11:30 AM CDT

Food Dye Used in Doritos Offers a 'Jaw-Dropping' Perk

Tartrazine, aka 'Yellow No. 5,' creates see-through skin on mice to help scientists peer inside their bodies

(Newser) - To many consumers, "Yellow No. 5" is best known as the food dye that adds an orange-yellow tinge to snacks and drinks like Doritos, Gatorade, and M&Ms. To a team from Stanford, however, tartrazine, the chemical found in that dye, recently served as a window into living creatures'...

Want to Scare a Male Mouse? Try a Banana


Want to Scare
a Male Mouse?
Try a Banana
new study
May 31, 2022 11:22 AM CDT

Want to Scare a Male Mouse? Try a Banana

Scientists make an odd, and accidental, discovery

(Newser) - It's one of the weirder scientific discoveries in a while: Scientists accidentally found that mice are afraid of bananas—but only male mice, and particularly virgins. It seems that bananas give off the same scent that female mice emit when they're warning males to steer clear of their...

The Mouse Infestation at FDA HQ Is Sort of Normal

It turns out mice, other critters are common around White Oak, but pandemic didn't help

(Newser) - It could happen in any office building from which staff made hasty, "temporary" departures at the start of the pandemic. One week rolled into the next, and the workers did not return, but all those snacks around their offices remained. Local rodents took notice, apparently, at the FDA's...

Calif. OK's Plan to Blanket Islands In Poison

Mice threaten wildlife at Farallon Islands

(Newser) - The California Coastal Commission has approved a plan to poison invasive mice threatening rare seabirds on the Farallon Islands National Wildlife Refuge, per the AP . The agency that regulates California's coastline voted 5-3 Thursday night to approve a plan to drop about 3000 pounds of poisoned bait from helicopters...

Mouse Plague Forces Prison Evacuation

Rodents have chewed through wires at rural Australian facility

(Newser) - As a maximum security prison, the Wellington Correctional Center in New South Wales is good at keeping prisoners in—but it has completely failed to keep rodents out during the mouse plague the region is experiencing. The prison says more than 400 inmates and 200 staff members will be relocated...

Australia Tormented by Plague of Ravenous Mice

Numbers are 'absolutely unprecedented'

(Newser) - Vast tracts of land in Australia's New South Wales state are being threatened by a mouse plague that the state government describes as “absolutely unprecedented." Just how many millions of rodents have infested the agricultural plains across the state is guesswork, the AP reports. At night, the...

'Shocking' Find Made at Government Labs

PETA demands an audit at all National Institutes of Health laboratories

(Newser) - Mice cooked to death. Primates holed up in a room with 24-hour-a-day lights. An owl, denied veterinary care, that dies in a cage. These are among the 31 incidents uncovered through a freedom-of-information request about animal-welfare failures in government labs in 2018 and 2019—labs where official inspections are never...

The Plan: Drop 1.5 Tons of Rat Poison Pellets Here

Fish and Wildlife Service thinks it's the only way to rid the Farallon Islands of mice

(Newser) - The only humans who occupy the South Farallon Islands off San Francisco are scientists. But the land is otherwise well-populated: In addition to sea lions, seals, and salamanders, it's home to the biggest seabird breeding colony in the Lower 48. But there's also house mice—up to 60,...

This Could Be a Novel Way to Conquer Cocaine Addiction

Scientists devise a genetically engineered skin graft that works in mice

(Newser) - Could a skin graft help cocaine addicts get clean? Scientists at the University of Chicago say their novel approach has worked in mice, reports New Scientist . And if this translates to humans, it could be a game changer, though the remedy is specific to cocaine addiction. In a new study...

200K Mice Plagued the Islands. Amazingly, There Are Now None

A seeming victory for biodiversity on New Zealand's Antipodes Islands

(Newser) - A subantarctic archipelago is making "huge news": The New Zealand Herald reports there are officially no more mice on the country's Antipodes Islands, which once housed up to 200,000 of the rodents. They caused a big threat to the World Heritage Site by preying on native birds,...

Work Orders Offer 'Rare Glimpse' Into WH Maintenance Issues

Like mice, roaches, ants, and a toilet seat for the Oval Office

(Newser) - Remember when President Trump reportedly called the White House a "real dump" ? The New York Post notes that, at least in terms of maintenance issues, that observation may not be entirely inaccurate. Hundreds of work orders for the White House were submitted in 2017, and News4 got its...

Umbilical Cord Blood May Give Boost to Aging Brain
Blood in Umbilical Cord
May Improve Our Memories
NEW STUDY
Apr 20, 2017 8:32 AM CDT

Blood in Umbilical Cord May Improve Our Memories

Older mice injected with it performed better on maze tests

(Newser) - Oh, the proverbial fountain of youth. As we age, can we somehow tap into it? Researchers are exploring this in a literal way as they study the effects of blood from human umbilical cords—which is about as young as it gets—on aging mice. Reporting in the journal Nature...

Mice Have Been Living Off Us Even Longer Than Dogs
Mice Have Been Living Off
Us Even Longer Than Dogs
NEW STUDY
Mar 28, 2017 4:02 PM CDT

Mice Have Been Living Off Us Even Longer Than Dogs

They appeared around 15K years ago in Levant: study

(Newser) - Dogs were the first domesticated animal, but they may not have been the first to mooch off humans. Scientists previously believed mice started congregating around farms to snatch grain about 12,000 years ago. But new research out of Israel's University of Haifa suggests mice were interacting with humans...

Science's Surprising Discovery: Lungs Aren't Just for Breathing
Science's Surprising Discovery:
Lungs Aren't Just for Breathing
IN CASE YOU MISSED IT
Mar 26, 2017 7:10 AM CDT

Science's Surprising Discovery: Lungs Aren't Just for Breathing

They're a key part of blood formation, too: study

(Newser) - All this time we thought lungs were just for breathing. It turns out they also play a key role in how blood is formed, suggests a study in Nature out of the University of California-San Francisco. Scientists studying the lungs of mice discovered to their surprise that the lungs produced...

Days After Death, a Body Remains Alive
2 Days After Death,
Some Life
Continues
in Body
NEW STUDY
Jan 25, 2017 6:45 PM CST

2 Days After Death, Some Life Continues in Body

Active genes may be attempting to repair damage: study

(Newser) - Death is more like the slow shutdown of a computer than the flipping off of a light switch, says a scientist, explaining a new study that shows genes in the body remain alive for about two days after the heart stops. In the study of mice and zebrafish, University of...

Scared of Spiders? You Will Be After Seeing This One

It's carrying a mouse

(Newser) - An Australian man has caused squeaks of terror around the world with a video of an enormous spider carrying a mouse up the side of a refrigerator. "Oh, hell, no" and "nope, nope, nope" sum up the more than 80,000 responses to the video , which has been...

Why Mice Are Nature's Jet Engines
Why Mice
Are Nature's
Jet Engines
Oct 11, 2016 1:48 PM CDT

Why Mice Are Nature's Jet Engines

The tiny animals use a very rare method to sing high-pitched songs

(Newser) - Wondering what animal might have the most in common with a jet engine? Prepare to be surprised. Elena Mahrt, author of a study published Monday in Current Biology , says mice sing ultrasonic songs using a method "never found before in any animal," according to a press release . It...

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