8,261 results
8,261 results for: Fish
- Life
How African turquoise killifish press the pause button on aging
The fish’s embryos can enter a state of suspended growth to survive dry spells. A study shows that state protects them from aging, and hints at how.
- Life
A new book captures how genetics fills in the story of life’s evolution
In Some Assembly Required, paleontologist Neil Shubin explores how genetic analyses complement paleontological research.
- Animals
Sea turtles may confuse the smell of ocean plastic with food
Sea turtles respond to the smell of plastic that’s been in the ocean similarly to food, suggesting the reptiles may end up eating the harmful debris.
- Environment
Why planting tons of trees isn’t enough to solve climate change
Massive projects need much more planning and follow-through to succeed – and other tree protections need to happen too.
- Anthropology
Homo erectus, not humans, may have invented the barbed bone point
Carved artifacts excavated from Tanzania’s Olduvai Gorge suggest now-extinct hominids made barbed bone points long before humans did, researchers say.
- Environment
Invasive jumping worms damage U.S. soil and threaten forests
Also known as snake worms, these writhing wrigglers turn forest leaf litter into bare ground, changing soil composition and ecosystems as they go.
- Paleontology
A squid fossil offers a rare record of pterosaur feeding behavior
150 million years ago, a pterosaur attempted to snatch a squid from the ocean surface and lost a tooth in the process.
- Climate
Mercury levels in fish are rising despite reduced emissions
Climate change and overfishing can increase how much mercury accumulates in fish, counteracting efforts to reduce human-caused emissions.
- Paleontology
Cannibalism in the womb may have helped megalodon sharks become giants
The ancient sea terror Otodus megalodon may have grown to at least 14 meters long thanks to a firstborn pup’s predatory behavior, some researchers say.
- Life
Piranhas and their plant-eating relatives, pacus, replace rows of teeth all at once
Piranhas and pacus both lose and replace all teeth on one side of their mouths in one go, which may help to distribute wear and tear.
- Neuroscience
Both fish and humans have REM-like sleep
Sleeping zebrafish have brain and body activity similar to snoozing mammals, suggesting that sleep evolved at least 450 million years ago.
- Life
Why otters ‘juggle’ rocks is still a mystery
Shuffling pebbles really fast looks as if it should boost otters’ dexterity, but a new study didn’t find a link.
