8,240 results
8,240 results for: Fish
- 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.
-
19292
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.
-
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.
- Health & Medicine
A Swiss Paradox?
Gstaad, Switzerland, has gained renown for its challenging ski trails and celebrity sightings. Come summer, however, the area’s slopes host cows, not skiers. It now appears that milk from those cows produces cheeses rich in some heart-healthy nutrients. Where and on what Bossie grazes appears to make a big difference in heart-healthiness of cheeses made […]
- Humans
Letters from the August 21, 2004, issue of Science News
Complex issue When cyanobacteria and plants transfer electrons photosynthetically, light is absorbed not by their photosynthetic proteins but by chlorophylls (“Protein Power: Solar cell produces electricity from spinach and bacterial proteins,” SN: 6/5/04, p. 355: Protein Power: Solar cell produces electricity from spinach and bacterial proteins). Some of these proteins indeed participate in electron flow, […]
- Ecosystems
Fly may be depleting U.S. giant silk moths
A parasitic fly introduced to fight gypsy moths starting in 1906 may be an overlooked factor in the declines of giant silk moths.
-
A fish’s solution to broken hearts
The zebrafish can regenerate missing heart muscle.
