Search Results for: Sharks
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810 results for: Sharks
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Baby talk goes to the dogs, and cats
Acoustic differences in the "baby talk" that mothers use with their infants and with family pets support the notion that adults use this form of speech to teach language skills to their babies.
By Bruce Bower -
EcosystemsNew protection for much-dogged shark
To rebuild northeastern U.S. populations of the spiny dogfish, the first fishing quotas on this species limit the harvest to roughly 10 percent of the 1998 haul.
By Janet Raloff -
HumansRare animals get U.N. protection
Several types of whales, river dolphins, the great white shark, and an unusual camel are among animals designated to receive new or heightened protection under a United Nations treaty.
By Janet Raloff -
PaleontologyMosasaurs were born at sea, not in safe harbors
Newly discovered fossils of prehistoric aquatic reptiles known as mosasaurs suggest that the creatures gave birth in midocean rather than in near-shore sanctuaries as previously suspected.
By Sid Perkins -
ChemistryShark Sense: Gel helps animals detect thermal fluctuations
New studies suggest that clear jelly under sharks' skin can enable the animals to detect minute changes in seawater temperature—potentially leading them to prey.
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19522
I’m sure you published this article in good faith, but I believe that claims for shark cartilage are not made seriously by anyone who studies the role of natural substances in cancer prevention. It was proved ineffective long ago. I think your article does a disservice to honest people who are trying to fight the […]
By Science News -
19096
The Japanese have developed an “artificial shark-fin machine” that produces a product quite similar in texture to the real thing. It’s being used in restaurants in Hong Kong. Let’s hope people’s tastes change before it is too late for the sharks. P.W.L. KwanBoston, Mass.
By Science News -
HumansWater’s Edge Ancestors
Human evolution’s tide may have turned on lake and sea shores.
By Bruce Bower -
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EarthDefying Depth
How deep-sea creatures, and close relatives, survive tons of water weight.
By Susan Gaidos