Filling the Niche On the islands of Galapagos, Charles Darwin observed in finches that animals inevitably fill niches left vacant by other animals.
(niches; left; vacant; by other animals) (Charles Darwin; observed; L:in finches; that animals inevitably fill niches) Context(Charles Darwin observed,List([47, 70))):(animals; inevitably fill; niches left vacant by other animals)
Charles Darwin observed,List([47, 70))
niches Charles Darwin animals
left observed inevitably fill
vacant by other animals
L:in finches that animals inevitably fill niches
niches left vacant by other animals