733 results
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Amphibian Atlas
Looking for a Montana tailed frog outside Montana or wondering in which state you might find a desert slender salamander? The U.S. Geological Survey has a Web site that identifies the places where different types of amphibians dwell across the United States. Click on any one of the 280 or so species of amphibians currently […]
- Humans
Science News of the Year 2005
A review of important scientific achievements reported in Science News during the year 2005.
- Animals
Toxin Takeout: Frogs borrow poison for skin from ants
Scientists have identified formicine ants as a food source from which poison frogs acquire their chemical weapons.
- Math
Life on the Scales
A mathematical equation helps explain life processes on all biological scales, from molecules to ecosystems.
- Earth
UV-pollutant combo hits tadpoles hard
Coincident exposure to ultraviolet light and an estrogen-mimicking pollutant severely jeopardized the chance a tadpole would reach adulthood.
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Colossal study shows amphibian woes
The largest amphibian data set ever crunched—936 populations in 37 countries—confirms global declines.
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Salamander moms use bacteria to save eggs from fungi
Salamander skin has bacteria that repel egg-destroying mold.
- Animals
Strange Y chromosome makes supermom mice
An otherwise rare system of sex determination has evolved independently at least six times in one genus of South American mice.
- Earth
Sexual Hang-Up: Fish hormones change when oxygen is scarce
Oxygen deprivation—an escalating problem in freshwater ecosystems worldwide—tampers with sex hormones in carp and might underlie the decline in some fish and amphibian species.
- Ecosystems
Risky High Life: Mountain creatures prove extra-vulnerable
Some of the species hardest hit by climate change will be those living in particular mountain highlands.
- Paleontology
Fossils of early salamanders found
A recent discovery of fossilized salamanders pushes back a milestone in amphibian evolution by more than 100 million years.
- Earth
More Frog Trouble: Herbicides may emasculate wild males
New studies of male frogs in the wild link trace exposures to common weed killers with partial sex reversal.
