8,262 results
8,262 results for: Fish
- Animals
Cougars may provide a net benefit to humans
Cougars have disappeared from the eastern United States. If they returned, they’d kill deer, preventing many car crashes, scientists find.
- 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.
- Environment
Tuna mercury rising
From 1998 to 2008, mercury levels in Hawaiian Yellowfin tuna have increased by 3.8 percent per year, researchers suggest.
- Animals
Killer whales follow postmenopausal leaders
Taking the lead on salmon hunts may be postmenopausal killer whales’ way of sharing their ecological knowledge.
- Animals
Feeding seabirds may give declining populations a boost
Supplementing the diets of kittiwakes with additional food might give fledglings a head start, a new study finds.
- Animals
Invasive rabbitfish team up to raze algal forests
Tropical rabbitfish have expanded into temperate Mediterranean waters, where they destroy algae forests by gobbling both young and adult algae.
- Health & Medicine
Foul smells during sleep may help smokers quit
A night of smelling rotten eggs and fish while inhaling cigarette odors makes smokers reach for fewer cigarettes upon waking.
- Health & Medicine
Pregnant women on the hook for calculating risks, benefits of fish
New draft FDA guidelines on fish for pregnant or nursing women make women do the math for how to maximize omega-3 fatty acids and minimize mercury exposure.
- Genetics
Gene drives spread their wings
Gene drives may wipe out malaria and take down invasive species. But they may be difficult to control.
- Neuroscience
One path that fear takes in the brain discovered
By hijacking a newly discovered pathway in mice’s brains, scientists inspire fear.
- Animals
Archerfish mouth is the secret of precision spit
Trained fish shoot down two hypotheses for their fine spit control but reveal fancy mouth work.
- Paleontology
Ancient fish may have set stage for jaws
A fish called Metaspriggina walcotti, which lived roughly 500 million years ago, had body parts that may have later evolved into jaws.
