8,278 results
8,278 results for: Fish
- Ecosystems
Eels on the move
Study tracks European eels for the first 1,300 kilometers of their migration.
- Paleontology
Fish death, mammal extinction and tiny dino footprints
Paleontologists in Bristol, England, at the annual meeting of the Society of Vertebrate Paleontology report on fish fossils in Wyoming, the loss of Australia’s megafauna and the smallest dinosaur tracks.
- Space
Europa’s proposed ocean could be rich in oxygen
A proposed ocean on Jupiter’s moon Europa may receive about 100 times more oxygen than previously estimated.
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19264
Get real. When you were 4 years old, you understood it better. It goes like this: You dump the inkwell (toxic discharge from industry and sewage systems) into the goldfish bowl (ocean) and the fish all turn belly up and the bowl is without fish. The moneyed polluting industries, of course, would rather not get […]
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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 […]
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19299
This article could leave the impression that the evolutionary significant unit (ESU) is the de facto concept employed for all listing decisions under the Endangered Species Act. In fact, the ESU has not been used in the vast majority of recent listing decisions under the act. Nor should it be. The act allows the National […]
- Animals
Snapping shrimp whip up a riot of bubbles
High-speed video and fancy math demonstrate that snapping shrimp make so much noise by popping bubbles.
- Chemistry
Toxic runoff from plastic mulch
Pesticide runoff from tomato fields covered with sheets of plastic can kill fish, clams, and other aquatic life.
- 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.
- Paleontology
Listening to fish for extinction clues
Tiny fossils from fish that survived worldwide extinctions about 34 million years ago may reveal that cooler winters caused the die-off.
- Animals
Shielded cells help fish ignore noise
Fish can sort out the interesting ripples from the background rush of water currents through sensors shielded in canals that run along their flanks.
- Paleontology
Early Biped Fossil Pops Up in Europe
A newly described, nearly complete 290-million-year-old fossil of an ancient reptile pushes back the evidence for terrestrial bipedalism by 60 million years.
