This is a preview. Log in through your library . Abstract Hypotheses that attempt to explain latitudinal gradients in species diversity are reviewed. Some hypotheses are circular, i.e. they are based ...

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G. C. Stevens showed that an equatorward increase in species richness is often paralleled by a decrease in the mean latitudinal range of species-a pattern he called Rapoport's rule. He reported a ...

Research reveals how reducing dimensionality can trap heat, opening the door to high-efficiency energy devices.

Physicists report that temperature gradients within pores in rock could have separated primitive biopolymers on the basis of their sequences -- a vital precondition for the formation of ...

Dive into a colorful summer-themed doodle created with Copic markers. Packed with playful shapes, bold outlines, and bright gradients, this artwork captures the fun of sunny days. Great inspiration ...

A minimalist artwork of golden-yellow leaves outlined in white and layered with gradients, set against a black background for bold contrast.