8,312 results
8,312 results for: Fish
- Paleontology
Fossilized vomit reveals 290-million-year-old predator’s diet
The regurgitated material from before the time of dinosaurs provides a rare window into the feeding habits of a prehistoric hunter.
- Animals
Animals experience joy. Scientists want to measure it
Scientists have long focused on quantifying fear and other negative emotions in animals. Now they’re trying to measure positive feelings — and it’s a challenge.
- Genetics
Why African striped mice can be the best of dads — or the worst
Environmental cues can flip a molecular switch in the brain, turning males from caregivers to killers.
- Humans
Napoleon’s retreating army may have been plagued by these microbes
DNA from Napoleonic soldiers’ teeth uncovered two fever-causing bacteria that may have worsened the army’s fatal retreat from Russia.
- Life
From viruses to elephants, nature thrives on tiled patterns
A compilation of 100 examples of biological tilings shows how repeated natural motifs enhance strength, flexibility and other key functions.
- Animals
Secrets of the Bees zooms in on life in a hive
A new documentary available on Disney+ and Hulu appeals to our sense of wonder to highlight why bees need saving.
- Animals
Wild monkeys invaded Florida. Should people protect them?
A colony of African vervets in Dania Beach raises big questions about how humans can and should manage nonnative species.
- Microbes
This giant microbe organizes its DNA in a surprising way
3-D microscopy shows that the giant bacterium Thiovulum imperiosus squeezes its DNA into peripheral pouches, not a central mass like typical bacteria.
- Animals
Just like humans, many animals get more aggressive in the heat
From salamanders to monkeys, many species get more violent at warmer temperatures — a trend that may shape their social structures as the world warms.
- Animals
A sea turtle boom may be hiding a population collapse
In Cape Verde, conservation has boosted the sea turtle population 100-fold — but the male-female balance is way off.
- Animals
Some penguins save energy by riding ocean currents
When navigating home, Magellanic penguins alternate between heading straight back in calm waters and swimming with the flow in strong ocean currents.
- Animals
How tracking golden eagles in Nevada revealed a desert ‘death vortex’
Something is stopping Dry Lake Valley’s golden eagles from reproducing and killing raptors that fly in to fill the void.
