Uncategorized
- Paleontology
Ancient webbed masters
Newly unearthed fossils of a 110-million-year-old bolster the notion that all modern birds evolved from aquatic ancestors.
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19694
I learned that there are three types of birds: eagles, ducks, and tweety birds. To claim that all modern birds evolved from aquatic ancestors based on a 110-million-year-old fossil seems presumptuous. John St. ClaireCardiff-by-the-Sea, Calif.
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Fat Friends: Gut-microbe partners bring in more calories
The collaborative efforts of two common gut microbes could increase the calories that a person extracts from food and store as fat, a study in mice suggests.
- Earth
Mineral Deposit: Asbestos linked to lupus, arthritis
Already known to cause lung cancer, asbestos has now been associated with three autoimmune diseases.
