8,270 results
8,270 results for: Fish
- 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’ […]
- Ecosystems
Sawfish Central
Sawfish will soon be getting United Nations protection from exploitation. Right now, the only U.S. state where these ancient fish can generally be found—and then, only rarely—is Florida. Here’s a site to view the fish, a member of the shark family, and link to research aimed at rescuing populations of its seven beleaguered species worldwide. […]
- Ecosystems
Biota Behaving Badly
Members of an established ecosystem develop a sense of balance, usually permitting at least limited biodiversity and a stable structure. When interlopers arrive that aren’t responsive to the same environmental checks and balances, they can overrun the ecosystem, eliminating some members and quickly dominating others. Such bullying immigrants are known as invasive species—and they can […]
- Humans
From the August 14, 1937, issue
Trees inspire a new kind of architectural support, a university sophomore finds the first mosasaur fossil west of the Rockies, and an oilman scoffs at fears over increasing atmospheric carbon dioxide due to industrial activity.
- Animals
Not Your Ordinary Amphibians
They resemble mondo worms or perhaps eels and snakes. But caecilians (seh sil yenz) are actually legless amphibians, and along with deep sea fishes are among the least well known vertebrates on the planet. Some run to a meter or more in length. Although information on these elusive animals and photos of them are hard […]
- Humans
One-Stop Shopping for Every Species
On Feb. 26, the Encyclopedia of Life went live. This site hopes to become the definitive place to find information on every living species—millions and millions of them. The first extensive sets of entries will include fish and members of the potato and tomato families. But more species will be added all the time—offering basic […]
- Humans
From the April 2, 1938, issue
The science of tall tales, a fluorine-spouting volcano under ice, and viruses show signs of life.
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Letters
Only in the north It is not clear in the fine article on volcanoes (“Disaster goes global,” SN: 8/30/08, p. 16) how dust from the eruption of Huaynaputina, well south of the equator, in 1600 could affect only the Northern Hemisphere. David Bronson, Biddeford Pool, Maine For one thing, there’s less real estate in the […]
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Letters
Plan for a long stay Lawrence Krauss’ idea of staying permanently on Mars (SN: 10/10/09, p.4) is fascinating, but criticism by John F. Fay and Jeffry Mueller (Feedback, SN: 11/21/09 p.29) missed important information. Krauss too missed the best of all scientific comparisons. Regarding the travel to the American continent by the Pilgrims: the “capital […]
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Science Past from the issue of May 7, 1960
WHISTLING SWANS DYED TO STUDY MIGRATION ROUTE — The U.S. Fish and Wildlife Service has been dyeing whistling swans vivid colors to learn more about their migratory movements. With their wings, tails or other body parts colored blue, yellow, green or red, the swans are easier to observe both when flying and resting on the ground. […]
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SN Online
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