In cows’ guts, ciliates contain a tiny organelle called a hydrogenobody that may drive production of methane, a potent greenhouse gas. ... Read full Story
By Science News | Jake Buehler | 4/23/2026 2:00 PM
Some octopuses that lived over 72 million years ago were as long as whales. These huge predators may have been the largest invertebrates ever. ... Read full Story
By Science News | Jake Buehler | 4/21/2026 7:01 PM
North American sweat bees change color depending on the surrounding humidity. It might be a more widespread phenomenon among insects. ... Read full Story
Compressed air bids bye-bye to invasive sun corals in Brazil. The blasts obliterated soft tissue and fragments couldn't regenerate. ... Read full Story
By Science News | RJ Mackenzie | 4/20/2026 11:00 AM
With half a beak, Bruce has developed an innovative fighting style that has won the kea top status in his flock, videos and documented interactions reveal. ... Read full Story
Pacific pocket mice are geographically isolated, but the species may retain the genetic diversity needed to adapt to climate change. ... Read full Story
The strangler fig is a keystone species in the tropics, providing food and shelter, and a place to poop for 17 different mammal species. ... Read full Story
A cave preserved two animals’ rib cages, cartilage and even traces of protein, revealing a flexible breathing apparatus like that of today’s land dwellers. ... Read full Story
In The Creatures’ Guide to Caring, science journalist Elizabeth Preston looks to the animal kingdom to explore what it means to be a good parent. ... Read full Story
Limbless tree snakes can lift most of their body into the air without toppling. They manage this by focusing all their bending forces at their base. ... Read full Story
In a sperm whale birth recorded in more intimate detail than ever before, local whales huddled around the mother and lifted the calf to the surface. ... Read full Story
By Science News | Jake Buehler | 3/26/2026 2:00 PM
Fossil jaw remains found in Egypt suggest that the earliest modern apes evolved in North Africa, not in East Africa where most fossils have been found.
... Read full Story
Merriam-Webster's Word of the Day for May 4, 2026 is:
scrupulous \SKROO-pyuh-lus\ adjective
Scrupulous describes someone who is very careful about doing something correctly, or something marked by such carefulness. Scrupulous can also describe someone who is careful about doing what is honest and morally right.
// She was always scrupulous about her work.
// Being an editor requires scrupulous attention to detail.
// Less scrupulous companies find ways to evade the law.
“Scrupulous directors make sure that the sound of their movies is grossly efficient, so that the dramatic meaning of a scene is apparent even in the worst theatre or home system in the country …” — David Denby, The New Yorker, 9 Mar. 2026
Did you know?
People described as scrupulous might feel discomfort if their work is not executed with a sharp attention to detail. Such discomfort might present itself as a nagging feeling, much as a sharp pebble in a shoe might nag a walker intent on getting somewhere. And we are getting somewhere. The origin of scrupulous is founded in just such a pebble. Scrupulous and its close relative scruple (“a feeling that prevents you from doing something that you think is wrong”) both come from the Latin noun scrupulus, “a small sharp stone,” the diminutive of scrupus, “a sharp stone.” Scrupus has a metaphorical meaning too: “a source of anxiety or uneasiness.” When the adjective scrupulous entered the English language in the 15th century, it described someone careful about preserving their moral integrity, but it now is also commonly used for someone who is careful in how they execute tasks.