Evolution
Moths Have an Acoustic Invisibility Cloak to Stay under Bats’ Radar
New research finds they fly around on noise-cancelling wings
Stories by Karen Hopkin
The Body
Your Brain Does Something Amazing between Bouts of Intense Learning
New research shows that lightning-quick neural rehearsal can supercharge learning and memory.
Evolution
Animal Kids Listen to Their Parents Even before Birth
Human children: please take note of the behavior of prebirth zebra finches
Evolution
Puppies Understand You Even at a Young Age, Most Adorable Study of the Year Confirms
Researchers in the happiest lab in the world tested 375 pups and found they connected with people by eight weeks
Evolution
Bats on Helium Reveal an Innate Sense of the Speed of Sound
A new experiment shows that bats are born with a fixed reference for the speed of sound—and living in lighter air can throw it off.
Biology
Male Lyrebirds Lie to Get Sex
It seems like the males will do anything, even fake nearby danger, to get females to stick around to mate.
Evolution
Boston’s Pigeons Coo, ‘Wicked’; New York’s Birds Coo, ‘Fuhgeddaboudit’
The two cities’ rock doves are genetically distinct, research shows.
Conservation
E-Eggs Track Turtle Traffickers
Decoy sea turtle eggs containing tracking tech are new weapons against beach poachers and traffickers.
Neuroscience
Baby Bees Deprive Caregivers of Sleep
Bee larvae and pupae appear to secrete a chemical that does the work of a late-night cup of coffee for their nurses.
Neuroscience
Eye Treatment Stretches Mouse Sight Beyond Visible Spectrum
Nanoparticles that attach to photoreceptors allowed mice to see infrared and near-infrared light for up to two months.
Arts & Culture
Why Some Easter Island Statues Are Where They Are
Many of the statues not along the coast are in places that featured a resource vital to the communities that lived and worked there.
Chemistry
In Bee Shortage, Bubbles Could Help Pollinate
Soap bubbles are sticky enough to carry a pollen payload and delicate enough to land on flowers without harm.
Public Health
Can People ID Infectious Disease by Cough and Sneeze Sounds?
Individuals aren’t very good at judging whether someone coughing or sneezing has an infectious condition or is simply reacting to something benign.
Wellness
3 Words Mislead Online Regional Mood Analysis
Analyzing keywords on Twitter can offer a loose measure of the subjective well-being of a community, as long as you don’t count three words: good, love and LOL.
The Body
Skinny Genes Tell Fat to Burn
A gene whose mutated form is associated with cancer in humans turns out to have a role in burning calories over a long evolutionary history.
Chemistry
Virus-Infected Bees Practice Social Distancing
Bees infected with a virus cut back on interactions within their hive but find it easier to get past sentries at neighboring hives.
Biology
Fight-or-Flight Nerves Make Mice Go Gray
A new study in mice concludes stress can cause gray hair—and credits overactive nerves with the change in hue. Karen Hopkin reports.
Physics
Espresso May Be Better when Ground Coarser
A very fine grind can actually hamper espresso brewing, because particles may clump more than larger particles will.
Evolution
Some Wolf Pups Show Innate Fetching Talent
Some wolf pups will play fetch with a stranger, suggesting that an ability to playfully interact with people could have come before, and played a role in, dog domestication.
Biology
Curiosity Killed the ... Mouse?
The cat parasite Toxoplasma gondii boosts curiosity in mice—which makes them more likely to be caught by cats, thus continuing the parasite’s life cycle. Karen Hopkin reports...
