8,278 results
8,278 results for: Fish
- Climate
Warming Arctic will let Atlantic and Pacific fish mix
The ultra-cold, ice-covered Arctic Ocean has kept fish species from the Atlantic and Pacific separate for more than a million years — but global warming is changing that.
- Animals
Highway bridge noise disturbs fish’s hearing
In the lab, blacktail shiners had trouble hearing courtship growls over Alabama bridge traffic recordings.
- Environment
Tuna mercury rising
From 1998 to 2008, mercury levels in Hawaiian Yellowfin tuna have increased by 3.8 percent per year, researchers suggest.
- Ecosystems
Noise made by humans can be bad news for animals
Animals live in a world of sounds. Clever experiments are finally teasing out how human-made noise can cause dangerous distractions.
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- Animals
Cone snail deploys insulin to slow speedy prey
Fish-hunting cone snails turns insulin into a weapon that drops their prey’s blood sugar and eases capture.
- Life
Fossilized fish skull shakes up the evolutionary history of jaws
Analysis of a 415-million-year-old fossilized fish skull suggest that the earliest jawed vertebrates probably looked a lot like modern bony fish.
- Ecosystems
‘Earth: A New Wild’ puts people in the picture
PBS nature series ‘Earth: A New Wild’ shows humans living with, and not off, their environments
- Neuroscience
Chicks show left-to-right number bias
Recently hatched chicks may have their own version of the left-to-right mental number line.
- Animals
Paternity test reveals father’s role in mystery shark birth
A shark pup was born in a tank with three female sharks but no males. A genetic study finds that the shark must have stored sperm for nearly four years.
- Ecosystems
Dam demolition lets the Elwha River run free
Removing a dam involves more than impressive explosions. Releasing a river like Washington state's Elwha transforms the landscape and restores important pathways for native fish.
- Environment
Trash researcher tallies ocean pollution
Marcus Eriksen has always had a thing for trash, and now he tallies ocean pollution.
