8,305 results
8,305 results for: Fish
- Animals
Submariners’ ‘bio-duck’ is probably a whale
First acoustic tags on Antarctic minke whales suggest the marine mammals are the long-sought source of the mysterious bio-duck sound.
- Animals
Frustrated fish get feisty
Smaller rainbow trout become more aggressive towards bigger fish when they don’t their usual treats.
- Psychology
Babies learn some early words by touch
Tactile cues provided by caregivers give infants a leg up on learning words for body parts.
- Archaeology
Written in bone
Researchers are reconstructing the migrations that carried agriculture into Europe by analyzing DNA from the skeletons of early farmers and the people they displaced.
- Planetary Science
The ice of a distant moon
Jupiter’s moon Europa hides a liquid ocean, and conceivably life, under kilometers of ice. The challenge for engineers is how to penetrate that frozen barrier with technology that can be launched into space and operated remotely.
- Climate
Crop nutrients may drop as carbon dioxide rises
Many staple grains and legumes pack 5 to 10 percent less iron, zinc and protein when grown at carbon dioxide levels expected midcentury.
- Life
Genes gives clues to outcome of species interbreeding
Genetics provides clues to why hybrid river fish formed a subspecies but insects formed a new species.
- Climate
Environmental change may spur growth of ‘rock snot’
A controversial new theory suggests alga that forms rock snot isn’t an invader, but a low-key species native to many rivers.
- Animals
Reef fish get riled when intruders glow red
A male fairy wrasse gets feisty when he can see a rival’s colorful fluorescent patches.
- Life
Hatcheries’ metal can disrupt steelhead magnetic sense
Growing up in magnetic fields distorted by pipes and electronics confounds young fish’s inherited map sense.
- Paleontology
Ancient fish may have set stage for jaws
A fish called Metaspriggina walcotti, which lived roughly 500 million years ago, had body parts that may have later evolved into jaws.
- Life
Dinos straddled line between cold- and warm-blooded
Tyrannosaurus rex and other dinosaurs straddled line between cold- and warm-blood, a new analysis finds.
