8,269 results
8,269 results for: Fish
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19719
To argue that the concentrations reported in this study are environmentally relevant is misleading. Those concentrations are usually in groundwater, not surface waters. I’ve been involved in the environmental field for almost 20 years and have yet to hear of any fish being caught in groundwater. John HarrisSacramento, Calif. Study coauthor Frank von Hippel notes […]
- Paleontology
Amphibious Ancestors
Newly discovered fossils from Greenland, as well as a reexamination of those of previously known creatures, are providing researchers with additional insights into ancient vertebrates' move from water to land.
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Mutation blocks fat absorption
A newly discovered gene in zebrafish seems to prevent the animals from absorbing fat molecules from their diets.
- Animals
Bite This: Borrowed toad toxins save snake’s neck
An Asian snake gets toxins by salvaging them from the poisonous toads it eats.
- Health & Medicine
Light Therapy for Tainted Fish
Shining ultraviolet light on the meal fed to farmed fish could destroy dioxins and limit the amount of those toxic chemicals that people get in the fish they eat.
- Animals
Killer Flatworm: New species hunts with puffer fish toxin
A newly described marine flatworm from Guam hunts with the same toxin that a puffer fish uses. With video.
- Ecosystems
Top-Down Lowdown: Predators shape coastal ecosystem
The health of southern California kelp forests may depend more on the ecosystem's predator population than the forest's access to nutrients.
- Health & Medicine
Childhood Vitamin D—A New Benefit?
Vitamin D may prevent symptoms of asthma in toddlers.
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19727
This article cites evidence of a severe genetic bottleneck, suggesting that perhaps no more than three pregnant females launched the expanding western Atlantic red lionfish population. How can there be “pregnant females” in an animal with the external fertilization described in the article? Do you mean a founder population of as few as three individuals? […]
- Earth
Alaskan coral beds get new protection
To protect cold-water corals, huge areas of Alaskan waters will be off limits to trawls and other fishing gear that typically scrape the seafloor.
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Urban fish show perturbed spawning cycle
Sediment-dwelling fish off Seattle's waterfront exhibit spawning abnormalities that may compromise their ability to reproduce successfully.
- Paleontology
Paleotrickery: A lengthy lineage for leaf-mimicking insects
Species in one group of insects have escaped the hungry eye of predators by looking like foliage and moving like swaying leaves for at least 47 million years, a new fossil find suggests.
