8,246 results
8,246 results for: Fish
- Math
Knot Possible
Knot theorists are getting closer to their goal of developing practical procedures for distinguishing knotted curves from unknotted ones.
- Paleontology
Turn Your Head and Roar
The analysis of fossils that preserve evidence of diseases that appear to be similar or identical to afflictions that strike modern animals, including humans, could help scientists better grasp the causes and courses of today's ailments.
- Earth
Snowpack chemistry can deplete ozone
Pollutants trapped in Arctic snow can be reactivated by sunlight when the sun returns to high latitudes in the spring, leading to ozone depletion in the snowpack and at low altitudes.
- Earth
Plastic debris picks up ocean toxics
Some plastics can accumulate toxic pollutants from water, increasing the risk that they might poison wildlife mistaking these plastics for food.
- Earth
They’re not briquettes, but they’ll do
Chunks of fossil charcoal found in ancient sediments in north central Pennsylvania suggest that cycles of wildfire plagued Earth more than 360 million years ago.
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A Fly Called Iyaiyai
All that Latin has its light side.
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Film solves mystery of sleepwalking coral
For the first time, bewildered researchers realized that a bootlace-size eunicid worm can move chunks of coral around, perhaps explaining how some coral reefs get started.
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Telltale Heart
Genetics is revealing the first steps in building a heart—the organ that is first to develop, subject to the most birth defects, and difficult to heal when damaged later in life.
- Earth
Big Bergs Ahoy!
Although the break-up of Antarctica's northernmost ice shelves has been linked to warmer temperatures in the area, the cause of the unusual number of large icebergs calving from the continent's southern ice shelves last year was likely not global warming.
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Gray Matters
Once believed to be a supporting cast, the brain cells called astrocytes appear to play important roles in many brain scenarios.
