8,272 results
8,272 results for: Fish
- Earth
Something’s fishy about these hormones
Synthetic steroids used to beef up cattle can impair reproduction in female fish and even give them macho physical traits.
- Animals
Fishy Reputations: Undersea watchers choose helpers that do good jobs
Coral reef fish use smart-shopper techniques of looking for satisfied customers before choosing a small fish to provide cleaning services.
- Ecosystems
A Chronicle of Coasts: Study charts historical changes in seas, estuaries
New research compares the long-term ecological impact of human activities in estuaries and coastal seas on three continents.
- Earth
Toxic Leftovers: Microbes convert flame retardant
Bacteria can break down a common flame retardant into more-toxic forms.
- 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.
- Earth
Macho Moms: Perchlorate pollutant masculinizes fish
Perchlorate, a compound best known as a component of rocket fuel, can disrupt sexual development in fish.
- Ecosystems
Fish as Farmers: Reef residents tend an algal crop
A damselfish cultivates underwater gardens of an algal species that researchers haven't found growing on its own.
- Earth
Grand Canyon fish seem to be rebounding
The population of humpback chub, an endangered fish found only in the Colorado River and its tributaries, may be stabilizing in some sections of the Grand Canyon.
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Is a Galápagos finch caught in a split?
An inland population of one of the famed Galápagos finches may become a new textbook example of the way in which two species emerge from one while still living together.
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Wasting Deer: Deer saliva and blood can carry prions
Saliva alone can transmit a brain-destroying disease from one animal to another.
- Ecosystems
Worthless waters
The biological riches of the oceans will be spent within decades if current trends continue.
- Health & Medicine
L’Chaim: Wine compound lengthens mouse lives
A constituent of red wine appears to increase the life spans and boost the well-being of mice that haven't followed the healthiest of lifestyles.
