Search Results for: Vertebrates
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1,549 results
1,549 results for: Vertebrates
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Science Future for September 12, 2009
September 23–26 The Society of Vertebrate Paleontology marks Darwin’s bicentennial in Bristol, England. See www.vertpaleo.org/meetings October 11–17 Celebrate Earth Science Week with the American Geological Institute. Find local events at www.earthsciweek.org October 31 Deadline to enter the National Engineers Week Future City Competition for students. Visit www.futurecity.org
- Chemistry
Class Acts from New Pesticides: Chemicals have little effect on mammals
Two new classes of selective pesticides immobilize and eventually kill many crop-damaging insects by interfering with a cell receptor unique to those pests.
- Animals
Bumblebee 007: Bees can spy on others’ flower choices
Bumblebees that watched their neighbors feast on unusual flowers often later checked out the same kinds of blossoms themselves, a behavior that amounts to social learning.
- Paleontology
Raptor Line: Fossil finds push back dinosaur ancestry
Fossils of a newly discovered raptor dinosaur species suggest that the reptile's lineage is older and more widespread than previously suspected.
- Animals
Proxy Vampire: Spider eats blood by catching mosquitoes
Researchers studying food preferences among spiders report finding the first one with a taste for vertebrate blood.
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Macho Makeover: Fish rapidly ascend social ladder
Some male fish can upgrade their social status, and their appearance, in a matter of minutes.
- Paleontology
Caribbean Extinctions: Climate change probably wasn’t the culprit
Remains of extinct sloths unearthed in Cuba and Haiti indicate that the creatures persisted in Caribbean enclaves until about 4,200 years ago, a finding that almost absolves climate change following the last ice age as a cause for the die-offs.
- Paleontology
Mmmm, that’s crunchy
Isotopic analyses of the teeth of otters and mongooses from Africa have led one paleontologist to suggest that some of humanity's ancient kin shared those modern animals' preference for shelled prey such as freshwater crabs and snails.
- Paleontology
Tusk analyses suggest weaning took years
Changes in the proportions of various chemical isotopes deposited in mammoth tusks as they grew have enabled scientists to estimate how long it took juvenile mammoths to become fully weaned.
- Paleontology
Big bird terrorized South America
Researchers in Argentina have discovered fossils that may represent the heftiest flightless bird to ever have roamed the planet.
- Chemistry
Whiff Weapon: Pheromone might control invasive sea lampreys
Researchers have characterized the primary components of the migratory pheromone that guides sea lampreys to suitable spawning areas.
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From the issue of March 23, 2013.
