8,274 results
8,274 results for: Fish
- 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.
- Paleontology
Ancient Buzzing: German site yields early hummingbird fossils
Excavations in Germany have yielded the only known fossils of hummingbirds from the Old World and by far the oldest such fossils unearthed anywhere.
- Tech
Diagnostic gadget mixes and matches all in one
Researchers have fabricated a miniature diagnostic lab that can detect disease-linked genes in a small sample of whole blood.
- Earth
A Portrait of Pollution: Nation’s fresh water gets a checkup
Virtually all of America's fresh water is tainted with low concentrations of chemical contaminants, according to a new nationwide study.
- Paleontology
Crawling through Time: Fish bones reveal past climate change
The timing of ancient migrations of snakehead fish from the Indian subcontinent into Europe, Asia, and Africa tells scientists about temperature and humidity changes in those locations.
- Animals
Turtle Trekkers: Atlantic leatherbacks scatter widely
Satellite monitoring of leatherback turtles in the Atlantic show that these animals range widely instead of sticking to "turtle corridors."
- Health & Medicine
Fish toxin stops cancer pain
An experimental drug fashioned from the toxin of the puffer fish can suppress pain in cancer patients.
- Earth
Cost of protecting the oceans
Operating an extensive global network of marine parks in which fishing and habitat-stressing activities are restricted would probably be more affordable for governments than continuing to subsidize struggling fisheries at current levels.
- Paleontology
Neck Bones on the Menu: Fossil vertebrae show species interaction
Three fossil neck bones from an ancient flying reptile—one of them with the broken tip of a tooth embedded in it—indicate that the winged creatures occasionally fell victim to meat eaters.
- Archaeology
Seeds of agriculture move back in time
Excavations in Israel indicate that people began to eat large quantities of wild grass seeds and wild cereal grains by around 23,000 years ago, which pushes back by 10,000 years the estimated shift to a plant-rich diet.
- Ecosystems
Fish Stew: Species interplay makes fisheries management tricky in the long run
Annual fluctuations in certain fish populations can be best understood and controlled by accounting for ecological factors, such as predation by other fish, in addition to fisheries harvests.
- Animals
Anybody know this fish?
A 2-month marine-biodiversity survey of the Mid-Atlantic Ridge concluded this week, bringing home much data and some novel specimens.
