8,274 results
8,274 results for: Fish
- Oceans
Shallow reef species may not find refuge in deeper water habitats
Coral reefs in deep-water ecosystems may not make good homes for species from damaged shallow reefs.
- Paleontology
An ancient swimming revolution in the oceans may have never happened
Swimmers may not have suddenly dominated the oceans during the Devonian Period after all: New analyses suggest they took over much more gradually.
- Ecosystems
Bird poop helps keep coral reefs healthy, but rats are messing that up
Eradicating invasive rats from islands may help boost numbers of seabirds, whose droppings provide nutrients to nearby coral reefs.
- Animals
Surprise! This shark looks like a male on the outside, but it’s made babies
External male reproductive organs hid internal female capacity to give birth among hermaphrodite sharks in India.
- Tech
Readers share their experiences with DNA ancestry tests
Readers delighted in learning about Emmy Noether, and asked about autonomous taxis and how the first Americans may have arrived via coastal routes.
- Animals
New ‘Poké Ball’ robot catches deep-sea critters without harming them
A machine that gently catches and releases animals underwater could help researchers take a more detailed census of the deep sea.
- Life
Leprosy lurks in armadillos in Brazil’s Amazon
Armadillos in the Brazilian Amazon are often infected with leprosy, which they may pass to people.
- Paleontology
The Chicxulub asteroid impact might have set off 100,000 years of global warming
About 66 million years ago, the Chicxulub asteroid impact set off 100,000 years of global warming, an analysis of oxygen in fish fossils suggests.
- Animals
Here’s what narwhals sound like underwater
Scientists eavesdropped while narwhals clicked and buzzed. The work could help pinpoint how the whales may react to more human noise in the Arctic.
- Astronomy
Readers were curious about pendulum saws, laser tweezers and more
Readers had questions about Bronze Age pendulum saws, dark matter, lazer tweezers and more.
- Health & Medicine
At-home telomere testing is not a reliable marker of aging, researcher says
Telomere testing for consumers offers a poor measure of “biological age,” says Johns Hopkins oncologist Mary Armanios.
- Environment
A big analysis of environmental data strengthens the case for plant-based diets
A new study calculates the bonus for the planet of choosing more foods from plants.
