8,274 results
8,274 results for: Fish
- 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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A Fly Called Iyaiyai
All that Latin has its light side.
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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.
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Alarming Butterflies and Go-Getter Fish
Recent studies suggest that there may be more ways to create new species than Darwin imagined.
- Health & Medicine
Ancient Estrogen
A jawless fish ancestor may have revealed the most ancient of hormones and how current hormones evolved from it.
- Ecosystems
Wanted: Reef Cleaners
Nearly 18 years after a near total die-off of algae-grazing urchins in the Caribbean, those herbivores are poised for a comeback—which could help save area corals.
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- Chemistry
Burned by Flame Retardants?
One particular class of flame retardants—polybrominated diphenyl ethers—is accumulating at alarming rates in the environment, taints human breast milk, and has toxic effects similar to the now-banned PCBs.
- Earth
Tough Choices
Federal programs to preserve water in streams during droughts have prompted lawsuits and new pressures on endangered species and the law that protects them.
- 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.
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Science News of the Year 2001
A review of important scientific achievements reported in Science News during the year 2001.
