8,240 results
8,240 results for: Fish
- Earth
Green-ish pesticides bee-devil honey makers
Pesticides are agents designed to rid targeted portions of the human environment of undesirable critters – such as boll weevils, roaches or carpenter ants. They’re not supposed to harm beneficials. Like bees. Yet a new study from China finds that two widely used pyrethroid pesticides – chemicals that are rather “green” as bug killers go – can significantly impair the pollinators’ reproduction.
- Life
Rock-climbing fish caught in evolution tug-of-war
Tall is good for dodging danger, but short is better for climbing waterfalls.
- Life
Wild herring prove fast organizers
Recent technology helps researchers find out how a bunch of fish turn into a shoal.
- Animals
Megafish Sleuth: No Steve Irwin
There's no reason a scientist can't be an action hero — even if his damsels in distress have fins.
- Earth
Bird deaths blamed on vitamin deficiency
Shortage of thiamine may have been killing birds in the Baltic and possibly elsewhere for some 25 years.
- Health & Medicine
For a lucky few, ‘dioxins’ might be heart healthy
Dioxins and their kin are notorious poisons. They work by turning on what many biologists had long assumed was a vestigial receptor with no natural beneficial role. But it now appears that in a small proportion of people, this receptor may confer heart benefits.
- Earth
Atrazine paper’s challenge: Who’s responsible for accuracy?
As a new critique of a review paper on atrazine suggests, some papers may simply overtax a journal’s fact-vetting enterprise. Which would be bad for science. And bad for society.
- Health & Medicine
PCBs hike blood pressure
No one would choose to eat polychlorinated biphenyls, or PCBs — yet we unwittingly do. And a new study finds that the cost of their pervasive contamination of our food supply can be elevated blood pressure, a major risk factor for heart disease.
- Agriculture
Predators zoom in on lice-infested salmon
New research reveals another impact of fish farming on wild stocks.
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Pearls Unstrung
For a while, the Great Lakes weren’t connected by rivers and Niagara Falls was just a trickle.
- Ecosystems
Eels on the move
Study tracks European eels for the first 1,300 kilometers of their migration.
- Tech
Scientists propose lab-grade black holes
Creating tiny, artificial black holes could help uncover what happens to particles on the edge of full-sized black holes.
