What do the finches of the Galapagos Islands and the lizards of a tiny island at Fairchild Tropical Botanic Garden have in common? They’ve both shaped ideas on evolution. But the lizards of Fairchild ...

Why does natural selection appear to happen slowly on long timescales and quickly on short ones? A multigenerational study of four lizard species addresses biology’s “paradox of stasis.” James Stroud ...