Search Results for: Vertebrates
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1,548 results
1,548 results for: Vertebrates
- Earth
Changes in the Air
Changes in the atmospheric concentration of oxygen through geologic time, some gradual and some drastic, have strongly shaped evolution among many types of creatures.
- Humans
Science News of the Year 2005
A review of important scientific achievements reported in Science News during the year 2005.
- Paleontology
First Steps
Using materials as diverse as lobster eggs, dead birds, and the headless carcass of a rhinoceros, scientists are conducting experiments that scrutinize the first steps of the fossilization process.
- Earth
A Little Less Green?
Emerging data indicate that use of pyrethroid pesticides, even by home owners, poses significant environmental risks.
- Humans
Evolution in Action
Debates on the conflict between evolution and intelligent design are taking place not only in the courts but also in state legislatures and even among members of local school boards, where topics include curricula, textbooks, and the definition of science itself.
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