8,311 results
8,311 results for: Fish
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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.
- 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.
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Biological Dark Matter
The discovery that some genes encode RNA strands instead of proteins has surprised biologists.
- Anthropology
A Fair Share of the Pie
A cross-cultural project suggests that people everywhere divvy up food and make other economic deals based on social concepts of fairness, not individual self-interest.
- Materials Science
Materials Take Wing
Materials scientists are finding new uses for the billions of pounds of feathers produced each year by the poultry industry.
- Earth
Avalanche!
Laboratory studies of how snow crystals change shape under fluctuating environmental conditions and computer analyses that match the patterns of past avalanches with detailed meteorological data are helping scientists uncover the secrets of avalanches.
