8,274 results
8,274 results for: Fish
- Health & Medicine
Junk food ahead of pregnancy may harm baby-to-be
Women who have poor diets in the year before conception might have a higher risk of delivering a baby preterm than do women who eat healthful foods
- 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
Hatcheries’ metal can disrupt steelhead magnetic sense
Growing up in magnetic fields distorted by pipes and electronics confounds young fish’s inherited map sense.
- Animals
Swimming evolved several times in treetop ants
Certain ants living in tropical forest canopies turn out to be fine swimmers.
- 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
Dinos straddled line between cold- and warm-blooded
Tyrannosaurus rex and other dinosaurs straddled line between cold- and warm-blood, a new analysis finds.
- Animals
Otters provide a lesson about the effects of dams
A dam created a new habitat, but that habitat’s lower quality kept otter density low.
- 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.
- Ecosystems
Deep-sea trawling threatens oceans’ health
Dragging large nets along the seafloor to catch fish cuts organic matter and biodiversity in half and may threaten all of the world's underwater ecosystems.
- 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
Anemone eats bird, and other surprising animal meals
A fuzzy green anemone eating a bird many times its size shows that you can’t take anything for granted when it comes to which animals can eat each other.
- Animals
How an octopus keeps itself out of a tangle
The suckers on an octopus stick to just about anything, except the octopus itself. Scientists think they’ve figured out why.
