8,269 results
8,269 results for: Fish
- Earth
Salmon puzzle: Why did males turn female?
Most of the spawning female Chinook salmon in one part of the Columbia River appear to have started life as males.
- Earth
There’s a Catch: Recreation takes toll on marine fish
Recreational fishing isn't just a tiny, harmless nibble on saltwater-fish populations.
- Health & Medicine
A Fishy Therapy
Shark cartilage continues to be sold to fight cancer, even though its efficacy has not been confirmed by any major U.S. trials.
- Earth
Blowflies shed mercury at maturity
Blowflies that absorb mercury from fish carcasses they feed on as larvae rid themselves of much of that toxic metal when they become adults.
- Earth
Straight Flush
Scientists are evaluating the results of the flood they unleashed in the Grand Canyon last November, hoping that it will restore sandbars and beaches along the Colorado River just downstream of Arizona's Glen Canyon Dam.
- Health & Medicine
Fish toxin stops cancer pain
An experimental drug fashioned from the toxin of the puffer fish can suppress pain in cancer patients.
- Health & Medicine
Shark Finning Faces Broader Sanctions
Even as the gruesome practice of shark finning faces a broader ban, regulators find challenges in bringing scofflaws to justice.
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Cavefish blinded by gene expression
New evidence supports the theory that Mexican blind cavefish are sightless by evolutionary selection, not chance.
- Health & Medicine
Money Matters in Obesity
The higher cost of healthier food choices could be a major factor fostering the consumption of especially fattening fare.
- Animals
Alive and Knocking: Glimpses of an ivory-billed legend
New observations confirm that the famed ivory-billed woodpecker has not gone extinct after all.
- Paleontology
Listening to fish for extinction clues
Tiny fossils from fish that survived worldwide extinctions about 34 million years ago may reveal that cooler winters caused the die-off.
- Animals
Beat Goes On: Carp heart keeps pace when fish lacks oxygen
Without oxygen, a Scandinavian fish not only can survive but also maintains a normal heartbeat for days.
