8,313 results
8,313 results for: Fish
- Life
Newfound biological clocks set by the moon
Two unrelated marine organisms have rhythms dictated by tides, lunar cycle.
- Animals
Tortoise-studying teen takes top Broadcom prize
Even a tortoise enthusiast can speed through a three-day gauntlet of science, engineering and math challenges to claim victory. River Grace, 14, of West Melbourne, Fla., did just that. At an awards ceremony October 1, he picked up the top award of $25,000. The teen was one of 30 finalists from 17 states who attended the third annual Broadcom Math, Applied Science, Technology and Engineering for Rising Stars, or MASTERS, competition.
- Anthropology
Ancient farmers, foragers kept genes to themselves
Ancient DNA and diet clues suggest how farmers and hunter-gathers contributed to modern Europeans’ genetic profiles.
- Materials Science
Radar distinguishes electronics from other metals
Using two pulses of radio waves, method could locate survivors trapped in rubble.
- Humans
Letters from the August 6, 2005, issue of Science News
Empty threat? “Empty Nets: Fisheries may be crippling themselves by targeting the big ones” (SN: 6/4/05, p. 360) reads as if there is something to be alarmed about. By selectively catching large fish, we have reduced “the mean size [of food fish to] one-fifth of what it was.” This is not cause for alarm. It […]
- Humans
Bigger numbers, not better brains, smarten human cultures
An experiment using a computer game supports the idea that big populations drove the evolution of complex human cultures.
- Humans
Letters from the October 29, 2005, issue of Science News
Food for thought I note that pleasure activates the neurobiological response that fuels addictive behavior (“Food Fix: Neurobiology highlights similarities between obesity and drug addiction,” SN: 9/3/05, p. 155). It has long been a tenet of the 12-step programs that there is no pleasure greater than to use one’s talents to help others similarly afflicted. […]
- Animals
Odd head of seahorse cloaks its sneak attacks
Head shape creates hydrodynamic fake-out for stealth hunting.
- Life
Fish ignore alarming noises in acidifying seawater
Something about changing ocean chemistry could make young clownfish behave oddly around normally alarming sounds.
- Physics
Acoustical Society of America
A new way to cough, music for the deaf, toadfish sonic sabotage and more in meeting news.
- Life
Marine microbes fritter away jelly bonus
Bacterial feasts during jellyfish blooms drain valuable carbon out of the food web.
- Life
Heart has cellular regeneration ability
In mice, injecting a protein spurs the organ’s own stem cells to regrow small amounts of tissue after damage.
