8,270 results
8,270 results for: Fish
- 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.
- Animals
Frustrated fish get feisty
Smaller rainbow trout become more aggressive towards bigger fish when they don’t their usual treats.
- 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.
- Animals
Secrets of a sailfish attack
The large, long-nosed sailfish use their rostrums more like a sword than a spear to attack prey.
- Animals
What animal is the world’s best rock climber?
Lots of animals manage to scale vertical heights, and each has their own way of accomplishing the feat.
