459 results
459 results for: Dolphins
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Dolphins bray when chasing down a fish
The first high-resolution analysis of which dolphin is making which sound suggests that hunters blurt out a low-frequency, donkeylike sound that may startle prey into freezing for an instant or attract other dolphins.
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How whales, dolphins, seals dive so deep
The blue whale, bottlenose dolphin, Weddell seal, and elephant seal cut diving energy costs 10 to 50 percent by simply gliding downward.
- Paleontology
Learning from the Present
New field studies of unfossilized bones, as well as databases full of information about current fossil excavations and previous fossil finds, are providing insights into how complete—or incomplete—Earth's fossil record may be.
- Humans
Rare 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.
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Monkeys May Tune In to Basic Melodies
Simple tunes prove as memorable to rhesus monkeys as they do to people.
- Humans
Science News of the Year 2000
A review of important scientific achievements reported in Science News during the year 2000.
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Beast Buddies
As researchers muse about the evolutionary origins of friendship, even the social interactions of giraffes are getting a second look.
- Earth
A Dam Shame? Project may slam China’s biodiversity
When the Three Gorges Dam begins to impound the waters of the Yangtze River in China later this year, dozens of mountains and other elevated areas upstream will become islands—an outcome that will probably devastate the rich diversity of species now living along the river.
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River dolphins can whistle, too, sort of
In the most elaborate attempt so far to eavesdrop on Brazil's pink river dolphins, researchers have detected what may be a counterpart to seafaring dolphins' whistles.
- Earth
Catch Zero
It generally has taken less than a generation for modern, industrial-scale fishing, once deployed in a new plot of ocean, to exhaust the vast majority of the sea’s edible bounty and leave behind decimated ecosystems and depleted economic opportunities.
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Dolphins may seek selves in mirror images
Dolphins apparently recognize their own reflections.
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Cries and Greetings
Baboon intimacy and detachment present vexing clues.
