452 results
452 results for: Dolphins
- Animals
Swimming dolphins don’t need to cheat
Dolphins swimming through bubbles burst old notion of underpowered muscles.
- Genetics
For penguins, it’s a matter of no taste
Penguins lack taste genes for bitter, sweet and umami.
- Animals
It’s bat vs. bat in aerial jamming wars
In nighttime flying duels, Mexican free-tailed bats make short, wavering sirenlike sounds that jam each other’s sonar.
- Animals
Dolphins name themselves with a whistle
The marine mammals respond only to their own handles.
- Environment
Five years on, Deepwater Horizon oil spill’s impact lingers
Five years after the Gulf of Mexico’s largest disaster, researchers are still studying its ecological impact and struggling to learn the fate of most of the spilled oil.
- Paleontology
Fossil whale skull hints at echolocation’s origins
Ancestors of toothed whales used echolocation as early as 34 million years ago, analysis of a new fossil skull suggests.
- Materials Science
Radar distinguishes electronics from other metals
Using two pulses of radio waves, method could locate survivors trapped in rubble.
- Life
Many genes in dolphins and bats evolved in the same way to allow echolocation
Widespread changes scattered across the genomes of distantly related species cooperated to craft the trait.
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Extinct ocean reptiles now appear in color
Fossilized turtle, mosasaur and ichthyosaur tissue holds skin pigments that give scientists clues about what the animals looked like and how the coloration may have helped in colder climates.
- Genetics
DNA changes may show how whales adapted to water
Comparing the genetic material of whales has revealed DNA changes that may have helped the animals adapt to aquatic environments.
- Animals
Spotted seals hear well in and out of water
Spotted seals, native to the northern parts of the Pacific, hear frequencies that may mean they are susceptible to the effects of anthropogenic noise.
- Animals
Porpoises Can Teach Man Marine Diving, Detection
Excerpt from the September 7, 1963, issue of Science News Letter
