One hundred million years ago the earth looked very different from how it does today. Continents were joining and breaking apart, dinosaurs were roaming the earth, and flowering plants were becoming more widespread.
Plants & Animals
Jan 21, 2010
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Travelers to the neotropics -- the tropical lands of the Americas -- might be forgiven for thinking that all of the colorful insects flittering over sunny puddles or among dense forest understory are butterflies. In fact, ...
Plants & Animals
Aug 31, 2009
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