Uncategorized
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19764
This article says that a planet so close to a red dwarf would be forced to “rotate in sync” with the star. Is this the same situation that causes the moon to rotate in sync with Earth? Ken BollersHudson, Colo. Yes. First, the larger body (the red dwarf) pulls the smaller body (the planet) slightly […]
- Animals
New Butterfly: High-alpine species from low-life parents
Little bluish butterflies high in the Sierra Nevada could be one of the few animal species to have arisen from crossbreeding of two other species.
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19763
If membership in a species is characterized by the inability to breed with members of another species, how can there be “animal species known to have arisen from crossbreeding with other species? Jeffry D.
