8,095 results
- Humans
From the September 19, 1936, issue
A nebula photographed, thin films, and cancer as uncontrolled cell growth.
- Ecosystems
Feminized cod on the high seas
Male cod in the open ocean are producing an egg-yolk protein ordinarily made only by females, signaling their potential exposure to estrogen-mimicking pollutants.
- Humans
From the December 19 & 26, 1936, issues
CHRISTMAS HOLLY TREES HAVE THEIR FLOWERS TOO Despite the popularity of the familiar red holly berries for Christmas decorations, few of us are familiar with the rare beauty of the holly tree’s flower. The illustration on the front cover of this week’s Science News Letter is one of the superb enlargements in Walter E. Rogers’ […]
- Animals
Cyber Salmon
To learn about chum, chinook, and coho salmon, try this Web site from the Alaska Region of the U.S. Fish and Wildlife Service. Learn about the people of Alaska, several salmon species, and salmon habitat. The site includes salmon-related activities and lesson plans for various grade levels. Go to: http://cybersalmon.fws.gov/index.html
- Animals
Worm can crawl out of predators
A parasitic worm can wriggle out through a predator's gills or mouth if the predator eats the worm's insect host. With video.
- Health & Medicine
Has Early Programming Sealed These Animals’ Fate?
Surprising data from harbor seals indicate that nutrition prior to weaning may permanently set growth rates in the animals.
- Animals
Perfect Match: Tied contest gives fish no hormone rush
A male fish produces a burst of hormones as he fights off an intruder, but this surge isn't triggered simply by fighting.
- Animals
Fish Din: Reef clamor attracts young fish settlers
When looking for a home, young fish seem to prefer a reef that's alive with the sounds of shrimp and fish rather than a quieter environment.
- Animals
Is eyeless sea creature fishing with a red light?
Researchers off the coast of California have captured three deep-water siphonophores, relatives of jellyfish, and observed in the lab that the creatures twitch little red lights that could be lures for fish.
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19663
Changing the diet of pigs, cows, chickens, etc., to include more omega-3 fatty acids would be a healthy alternative to genetic engineering and wouldn’t require government approval. In particular, the weed purslane is higher in omega-3s than any other vegetable and is also edible by humans, although it is not generally available in markets. In […]
- Chemistry
Whiff Weapon: Pheromone might control invasive sea lampreys
Researchers have characterized the primary components of the migratory pheromone that guides sea lampreys to suitable spawning areas.
- Earth
Toxic Leftovers: Microbes convert flame retardant
Bacteria can break down a common flame retardant into more-toxic forms.
