8,308 results
8,308 results for: Fish
- Animals
Crabs’ sideways walk may have evolved just once
A study of 50 crab species in Japan traces the iconic sideways walk to a single ancestor, suggesting the trait drove the group's remarkable diversity.
- Humans
Napoleon’s retreating army may have been plagued by these microbes
DNA from Napoleonic soldiers’ teeth uncovered two fever-causing bacteria that may have worsened the army’s fatal retreat from Russia.
- Animals
Sharks are ingesting drugs in the Bahamas
Nearly one third of sharks studied near the Bahamas’ Eleuthera Island were found to have caffeine, painkillers and other drugs in their bloodstreams.
- Science & Society
How real is the Cyclops in The Odyssey?
The iconic one-eyed monster coming to movie screens in July in The Odyssey might have more in common with tiny water critters than with humans.
- Animals
These are our favorite animal stories of 2025
From clever cockatoos to vomiting spiders, these cool critters captivated us this year.
- Animals
Just like humans, many animals get more aggressive in the heat
From salamanders to monkeys, many species get more violent at warmer temperatures — a trend that may shape their social structures as the world warms.
- Life
From viruses to elephants, nature thrives on tiled patterns
A compilation of 100 examples of biological tilings shows how repeated natural motifs enhance strength, flexibility and other key functions.
- Health & Medicine
What freediving can reveal about human health — and our limits
The practice of freediving is teaching physiologists how humans stretch their physical and mental limits, which in turn may improve treatments for lung and heart ailments.
- Animals
Animals experience joy. Scientists want to measure it
Scientists have long focused on quantifying fear and other negative emotions in animals. Now they’re trying to measure positive feelings — and it’s a challenge.
- Paleontology
Fossilized vomit reveals 290-million-year-old predator’s diet
The regurgitated material from before the time of dinosaurs provides a rare window into the feeding habits of a prehistoric hunter.
- Microbes
New science on algae die-offs is too late for the Reflecting Pool
Iron and hydrogen peroxide trigger cell death via ferroptosis, which cascades killer molecules through the population, causing mass die-offs of algae.
- Animals
Some penguins save energy by riding ocean currents
When navigating home, Magellanic penguins alternate between heading straight back in calm waters and swimming with the flow in strong ocean currents.
