Sunbathing: good for your bones (if you’re a lizard)

Cold-blooded animals don’t produce their own heat, and thus they must sunbathe, basking in the sun’s rays to raise their body temperatures so they have eonugh energy to  go about their business. But for some ectotherms, the sun isn’t just a source of heat.  A new study shows that in the panther chameleon, native to Madagascar, basking behavior also controls production of essential vitamin D. In reptiles, vitamin D3...

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Happy Birthday, Charles Darwin

Today we mark the 200th anniversary of the birth of the most influential thinker in biology, Charles Darwin, renowned as the founder of the theory of evolution by natural selection. Publications worldwide have commemorated the day by publishing news articles on Darwin’s life and work and the current state of affairs in evolutionary theory.  Here’s a selection of impressive ones. Darwin Speaks, Scientific American. An...

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