810 results
810 results for: Sharks
- Life
‘Racing Extinction’ documents plight of endangered species
The new documentary "Racing Extinction" offers hope that people can halt the sixth mass extinction.
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November 14, 2015
In the Nov. 14 SN: Rethinking Earth’s boring billion, culinary cartography on Ceres, blood in the brain, tangled web of microbes, quantum computing with silicon, dimetrodon vs. shark, and more
- Paleontology
300 million-year-old giant shark swam the Texas seas
Fossil find shows oldest known ‘supershark,’ about the size of a limo, prowled the ocean 300 million years ago.
- Paleontology
Dimetrodon’s diet redetermined
The reptilelike Dimetrodon dined mainly on amphibians and sharks, not big herbivores as scientists once believed.
- Animals
What happens to animals in a hurricane?
Hurricanes can be devastating to animals on land and in the sea, but they can also provide opportunities.
- Animals
Why we need predators
It might be easy to say that we should wipe out species that can kill us. But the effects of such action would be far ranging.
- Animals
How a seahorse dad is like a pregnant woman
Live birth has evolved at least 150 times in vertebrates, including in seahorses and humans. And there are some surprising similarities between the species.
- Animals
Cougars may provide a net benefit to humans
Cougars have disappeared from the eastern United States. If they returned, they’d kill deer, preventing many car crashes, scientists find.
- Paleontology
Fossils illustrate evolution of life
Paleontologist Donald Prothero takes readers through the evolution of life on Earth from the earliest oozes of goo to our recent relative Lucy.
- Animals
Ivory listings found on Craigslist as elephant poaching continues
Elephants are hunted by the thousands to meet demand for ivory products.
- Animals
Deepwater dweller is first known warm-hearted fish
The opah, a deep-diving fish, can keep much of its body warmer than its surroundings, making it similar to warm-blooded birds and mammals.
- Animals
Piggyback rides and other crocodile fun
We don’t know the playful side of crocodiles perhaps only because we haven’t looked.
