By Science News | Payal Dhar | 12/12/2025 11:00 AM
A mosquito proboscis repurposed as a 3-D printing nozzle can print filaments around 20 micrometers wide, half the width of a fine human hair. ... Read full Story
Finding that vampire bats along Peru’s coast carried H5N1 antibodies raises concerns that multiple bat species could become reservoirs for the virus. ... Read full Story
By Science News | Jake Buehler | 12/8/2025 3:00 PM
Lamniform sharks such as great whites and tiger sharks are famous for their size. The first such giants evolved 15 million years earlier than thought. ... Read full Story
The modern house cat reached China in the 8th century. Before that, another cat — the leopard cat — hunted the rodents in ancient Chinese settlements. ... Read full Story
By Science News | Jake Buehler | 11/25/2025 12:00 PM
Ancient collagen preserved in the bones of extinct Australian mammals is revealing their evolutionary relationships, leading to some surprises. ... Read full Story
By Science News | Maria Temming | 11/21/2025 8:00 AM
Simple chemistry could give the reindeer his famously bright snout. But physics would make it look different colors from the ground. ... Read full Story
By Science News | Elie Dolgin | 11/20/2025 7:01 PM
A machine learning analysis of wild lion audio reveals they have two roar types, not one. This insight might help detect where lions are declining. ... Read full Story
By Science News | Elie Dolgin | 11/17/2025 12:00 PM
Video from the Haíɫzaqv Nation Indigenous community shows a wolf hauling a crab trap ashore. Scientists are split on whether it counts as tool use. ... Read full Story
Newly mated parasitic queen ants invade colonies and spray their victims with a chemical irritant that provokes the workers to kill their mother. ... Read full Story
By Science News | Meghan Rosen | 11/14/2025 11:00 AM
Ancient RNA from Yuka, a 40,000-year-old woolly mammoth preserved in permafrost, can offer new biological insights into the Ice Age animal’s life. ... Read full Story
An analysis of mining plumes in the Pacific Ocean reveals they kick up particles sized similarly to the more nutritious tidbits that plankton eat. ... Read full Story
After a decades-long hiatus, new world screwworm populations have surged in Central America and Mexico — and are inching northward. ... Read full Story
Merriam-Webster's Word of the Day for January 29, 2026 is:
reciprocate \rih-SIP-ruh-kayt\ verb
To reciprocate is to do something for or to someone who has done something similar for or to you. Reciprocate can also mean “to have (a feeling) for someone who has the same feeling for you.”
// It was kind of my friend to give me a ride to the airport, and on the flight I was thinking of how to reciprocate the favor.
“She entered the post office and greeted Tommaso, who reciprocated with a smile, then Carmine, who stroked his beard and shot her the usual skeptical glance.” — Francesca Giannone, The Letter Carrier (translated by Elettra Pauletto), 2025
Did you know?
“Scratch my back and I’ll scratch yours,” “do unto others as you would have them do to you,” “share and share alike”: such is the essence of the verb reciprocate, which implies a mutual or equivalent exchange or a paying back of what one has received. Reciprocate traces back to the Latin verb reciprocare (“to move back and forth”), which in turn comes from the adjective reciprocus, meaning “returning the same way” or “alternating.” Indeed, one of the meanings of reciprocate is “to move forward and backward alternately,” as in “a reciprocating saw.” Most often, however, reciprocate is used for the action of returning something in kind or degree, whether that be a gift, favor, or feeling.