Search Results for: Vertebrates
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1,539 results
1,539 results for: Vertebrates
- Paleontology
Did ancient wildfire end in barbecue?
Small pieces of large bones and petrified wood that show distinct signs of being burned may be evidence of a 74-million-year-old wildfire in central Wyoming.
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Do Antibodies Pack a Deadly Punch?
These immune molecules may directly kill, not just tag, microbes.
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Reef Relations
The discovery of humanlike genes in coral means that the common ancestor of both humans and coral was more complex than previously assumed.
- Paleontology
Big Gulp? Neck ribs may have given aquatic beast unique feeding style
The fossilized neck bones of a 230-million-year-old sea creature have features suggesting that the animal's snakelike throat could flare open and create suction to pull in prey.
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Estrogen Shock: Mollusk gene rewrites history of sex hormone
Estrogen and similar hormones evolved much earlier than thought.
- Paleontology
Neck Bones on the Menu: Fossil vertebrae show species interaction
Three fossil neck bones from an ancient flying reptile—one of them with the broken tip of a tooth embedded in it—indicate that the winged creatures occasionally fell victim to meat eaters.
- Humans
Science News of the Year 2005
A review of important scientific achievements reported in Science News during the year 2005.
- Health & Medicine
Good to the Bone: Strontium compound prevents some fractures
An experimental drug containing strontium makes bones denser and decreases the risk of fractures, a study of elderly women finds.
- Health & Medicine
Vegetable Soup Fights Cell Damage
A study in which volunteers ate vegetable soup every day for two weeks points to benefits of vitamin C beyond its role as an antioxidant.
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Fish guts reveal microbial alliance
Scientists are studying germfree zebra fish to better understand how microbes influence gut development.
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19299
This article could leave the impression that the evolutionary significant unit (ESU) is the de facto concept employed for all listing decisions under the Endangered Species Act. In fact, the ESU has not been used in the vast majority of recent listing decisions under the act. Nor should it be. The act allows the National […]
- Health & Medicine
A Fishy Therapy
Shark cartilage continues to be sold to fight cancer, even though its efficacy has not been confirmed by any major U.S. trials.
