8,283 results
8,283 results for: Fish
- Earth
Weed killer feminizes fish
The weed killer atrazine can turn normally hermaphroditic fish into females, a new study shows.
- Animals
Tadpoles kill by supersuction
A high-speed video shows tiny African tadpoles that catch their prey in a manner unlike that used by any other frog larvae: by shooting out a tubular mouth for superfast suction.
- Animals
Ear for Killers: Seals discern foes’ from neighbor-whales’ calls
Harbor seals eavesdrop on killer whales and can tell the harmless neighborhood fish eaters from roving gangs with a taste for fresh seal.
- Paleontology
Forged fossil is a fish-eating fowl
Detailed analyses of Archaeoraptor, a forged fossil once thought to be a missing link between dinosaurs and birds, reveal that the majority of that fake comes from an ancient, fish-eating bird.
- Paleontology
Fossil footprints could be monumental
Trace fossils found in a vacant lot in a small town in Utah, including the footprints of meat-eating dinosaurs, could soon be protected as part of a new U.S. national monument.
- Health & Medicine
Prostate protection? This is fishy
Diets rich in fish may cut a man's risk of prostate cancer.
- Animals
Condor chicks hatch in zoo and wild
Newly hatched California condor chicks indicate that reproduction is again taking place in the wild.
- Earth
Landfills Make Mercury More Toxic
Landfill disposal of mercury-containing products can chemically transform the pollutant not only to make it more potent but also to foster its release into air.
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Vitamin A calibrates a heart clock, 24-7
Scientists have discovered a molecular clock that keeps the circulatory system in sync with the rest of the body, and they show it's regulated by vitamin A.
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A bad month for condors
Two California condors in the wild—a hatching and a just-released juvenile—died the same week, as a third went missing.
- Ecosystems
Fish stocking may transmit toad disease
Hatchery-raised trout can transfer a deadly fungus to western toads, bolstering the view that fish stocking may play a role in amphibian population declines.
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The trouble with small male spiders
A test of an old view of sexual cannibalism—that it's a way of rejecting suitors—finds that small males lose out, but not from attacks by females.
