8,240 results
8,240 results for: Fish
- Ecosystems
Light All Night
New digital images demonstrate that artificial light from urban areas penetrates deep into some of America's most remote wild places, where it may disrupt ecosystems that have evolved with a nightly quota of darkness.
- Anthropology
Mental Leap
As scientists discover traits shared by human and ape ancestors millions of years ago, they try to fill in the gaps of human evolution.
- Earth
Toxic Surfs
Scientists have discovered not only three new mechanisms by which an alga species in Florida water can poison but also a trio of natural antidotes produced within that same species.
- Anthropology
Stone Age Footwork: Ancient human prints turn up down under
An ancient, dried-up lakeshore in Australia has yielded the largest known collection of Stone Age footprints, made about 20,000 years ago.
- Humans
From the August 17, 1935, issue
Cactus gardening for a dry summer, Echo-sounding to locate fish, and suspended animation in humans.
- Humans
From the December 7, 1935, issue
Indian art at Boulder Dam, ice under pressure, and vitamin A's role in vision.
- Ecosystems
Squirt Alert
A sea animal of unknown origins and lacking any known predator has begun commandeering ecosystems in cool coastal waters throughout the world.
- Agriculture
Using Light to Sense Plants’ Health and Diversity
Laser scanners may help farmers better tailor when and how much to fertilize their crops, with side benefits for the environment.
- Anthropology
Chimps show skill in termite fishing
Video cameras set up in a central-African forest have recorded the sophisticated ways in which local chimpanzees catch termites for eating.
- Paleontology
Out of the Shadows
An ongoing flurry of fossil finds is triggering a reevaluation of how early mammals and their close kin eked out an existence during the Age of Dinosaurs.
- Earth
Breeding Parasites Along with Fish: Do sea lice from salmon farms spread far?
Marine parasites known as sea lice spread readily from farmed salmon to passing wild fish, according to a controversial study conducted in British Columbia.
- Animals
Anybody know this fish?
A 2-month marine-biodiversity survey of the Mid-Atlantic Ridge concluded this week, bringing home much data and some novel specimens.
