810 results
810 results for: Sharks
- Astronomy
Readers’ interest piqued by Parker Solar Probe, general relativity and more
Readers had questions about NASA's Parker Solar Probe, Einstein's general relativity theory and underwater cables used as earthquake sensors.
- Paleontology
Fossil teeth show how a mass extinction scrambled shark evolution
The dinosaur-destroying mass extinction event didn’t wipe out sharks, but it did change their fate.
- 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.
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August 4, 2018
In the Aug. 4 SN: Money’s murky origins, computer programs expose fake news, one neutrino’s journey, early Texas toolmakers, electric fields cue spider flight, pregnant male sharks, baby planet pics and more.
- Animals
Here’s how to use DNA to find elusive sharks
Hard-to-find sharks that divers and cameras miss appear in genetic traces in the ocean.
- Climate
Bull sharks and bottlenose dolphins are moving north as the ocean warms
Rising temperatures are making ocean waters farther north more hospitable for a variety of marine species.
- Animals
In marine mammals’ battle of the sexes, vaginal folds can make the difference
Patricia Brennan and colleagues found certain female ocean mammals have vaginal folds that give them an advantage in mating
- Animals
Alligators eat sharks — and a whole lot more
Alligators aren’t just freshwater creatures. They swim to salty waters and back, munching on plenty of foods along the way.
- Archaeology
Peru’s plenty brought ancient human migration to a crawl
Ancient Americans reached Peru 15,000 years ago and stayed put, excavations suggest.
- Animals
Venomous fish have evolved many ways to inflict pain
Fish venom shows great diversity and is being studied to treat pain, cancer and other diseases.
- Animals
Readers dispute starfishes’ water-swirling abilities
Volcanic eruptions, fast-freezing water, starfish physics and more in reader feedback.
- Paleontology
Identity of ‘Tully monster’ still a mystery
Paleontologists challenge whether the Tully monster actually was a vertebrate because it lacks key vertebrate structures.
