8,095 results
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Transplant reroutes cells from sperm to eggs
Fish cells destined to become sperm can become eggs when transplanted into larvae.
- 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.
- Anthropology
Stone Age Role Revolution: Modern humans may have divided labor to conquer
A new analysis of Stone Age sites indicates that a division of labor first emerged in modern-human groups living in the African tropics around 40,000 years ago, providing our ancestors with a social advantage over Neandertals.
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Digital Dissection
The same medical technology used to image brain tumors and torn knee ligaments is taking the field of marine biology to a new dimension by allowing anyone with Internet access to examine fish as never before. This Web page describes how researchers at the University of California, San Diego’s Keck Center for Functional Magnetic Resonance […]
- Earth
Species-aid budget looks fishy
State and federal governments spent $1.4 billion in 2004 on conserving endangered and threatened species, with one-third of that sum going to protect fish.
- Ecosystems
Saving Sturgeon
Sturgeon species around the world are in trouble, which is why humans will increasingly be stepping in to give them a big assist.
- Ecosystems
Caviar Caveats
Caviar may become harder to find as a new trade ban goes into effect that's aimed at giving the most prized sturgeon a much-needed break from overfishing for their roe.
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19691
Tiktaalik may not have left the water by choice, to avoid predators, or to get more oxygen. Instead, it might have found itself left behind on a muddy floodplain each time waters receded with the tide. Tiktaalik ‘s “limbs” were probably first developed to survive in an environment that required bracing and stabilizing against currents, […]
- Animals
Tszzzzzt! Electric fish may jam rivals’ signals
An electric fish appears to sabotage a rival's electric signals as a fight starts. With Audio and Video.
- 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.
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Blood Sucker: Like the adult heart, the developing heart takes advantage of suction
The embryonic heart works more like the adult heart than scientists had long assumed.
- Math
Quark Park
Math-inspired and science-related artworks enliven an imaginatively landscaped sliver of parkland.
