8,313 results
8,313 results for: Fish
- Health & Medicine
Enough Isn’t Enough: An epidemic of vitamin D deficiency
Many U.S. women of childbearing age, particularly those of African descent, lack sufficient vitamin D even though they consume the recommended amount.
- Materials Science
X Rays to Go: Carbon nanotubes could shrink machines
A new type of X-ray machine operates at room temperature by producing X-ray-generating electrons with carbon nanotubes instead of traditional heated metal filaments.
- Paleontology
Into the Gap: Fossil find stands on its own four legs
A fossil originally misidentified as an ancient fish turns out to be the nearly intact remains of a four-limbed creature that lived during an extended period noted for its lack of fossils of land animals.
- Anthropology
Evolution’s Surprise: Fossil find uproots our early ancestors
Researchers announced the discovery of a nearly complete fossil skull, along with jaw fragments and isolated teeth, from the earliest known member of the human evolutionary family, which lived in central Africa between 7 million and 6 million years ago.
- Paleontology
Skimming the Surface: Flying reptile may have scooped its meals
Fossils unearthed in Brazil strengthen the idea that some species of ancient flying reptiles snatched their meals on the fly, snapping up fish as they swooped low over the water's surface.
- Earth
A Stinging Forecast: Model predicts chance of encountering jellyfish
Weather forecasters usually prognosticate precipitation, pollen, and poor air quality, but in some areas, they could soon provide beachgoers with the probability of confronting a jellyfish.
- Ecosystems
Pfiesteria’s Bite: Microbe may kill fish by skinning, not poisoning
At least one kind of Pfiesteria—accused of killing fish and threatening human health—does not produce a toxin but kills by eating holes in fish's skin, some researchers say.
- Earth
Killer Cocktails: Drug mixes threaten aquatic ecosystems
Trace amounts of pharmaceutical drugs in waterways may work together to deform and kill native microscopic organisms.
- Earth
Early Shift: North Sea plankton and fish move out of sync
As ocean temperatures in the North Sea have warmed in recent decades, the life cycles of some species low in the food chain have accelerated significantly, sometimes wreaking ecological havoc.
- Earth
There’s a Catch: Recreation takes toll on marine fish
Recreational fishing isn't just a tiny, harmless nibble on saltwater-fish populations.
- Health & Medicine
Alzheimer’s Advance: Omega-3 fatty acid benefits mice
A diet that includes a key omega-3 fatty acid found in fish prevents some memory loss in mice that develop a disease resembling Alzheimer's.
- Animals
Super Bird: Cooing doves flex extra-fast muscles
Muscles that control a dove's cooing belong to the fastest class of muscles known.
