8,244 results
8,244 results for: Fish
- Animals
Dangerous Times: Guppies don’t follow rules for old age
A study of wild guppies suggests that life in a dangerous place does not automatically push evolution toward rapid aging as previously thought.
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Breathless: Reef fish cope with low oxygen
A coral reef may look like a high-oxygen paradise, but the first respiration tests of fish there show an unexpected tolerance for low oxygen.
- Earth
Farmed salmon bring PCBs to the table
High concentrations of chlorinated organic contaminants in farm-raised Atlantic salmon may warrant limiting consumption of the otherwise-healthful fish to no more than once per month.
- Animals
Beetle fights bass in mouthwash duel
A whirligig beetle duels with a hungry fish by dribbling out a repulsive chemical while the fish tries to rinse it off.
- Health & Medicine
Gene transfer puts good fats in mammals
Scientists have used a worm gene to genetically engineer mice whose tissues are unusually rich in the heart-healthy fats found mainly in fish.
- Planetary Science
The Huygens Chronicles
After several months of painstaking work analyzing data from the Huygens probe, planetary scientists are able to see the surface of Saturn's moon Titan in greater detail than ever before.
- Health & Medicine
‘Harmless’ Alga Indicted for Mussel Poisoning
A common algal species turns out to be a serious food-poisoning agent.
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I thought that the X and Y chromosomes determined gender in animals, but I see no mention of them in your article. Does this mean that on a genetic basis, males and females in these organisms are identical? Neil H. MurphyWalnut Creek, Calif. In a sense, yes, says Philip Hastings of the Scripps Oceanographic Institute […]
- Tech
Hungry for Nano
The food industry is turning to nanotechnology as it searches for innovations that could bring safer, healthier, and tastier products to consumers.
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When to Change Sex
A research team contends that animals that routinely change sex, even those prompted by mate loss or other social cues, tend to do so when they reach 72 percent of their maximum size.
- Agriculture
Frozen Assets
A U.S. gene bank has begun deep-freezing semen and other livestock 'seed' for possible future use in research or breeding.
- Paleontology
Big Gulp? Neck ribs may have given aquatic beast unique feeding style
The fossilized neck bones of a 230-million-year-old sea creature have features suggesting that the animal's snakelike throat could flare open and create suction to pull in prey.
