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Catastrophe triggers diversification


An analysis of more than 2,000 species of bird provides insight into how the animals' diverse beak shapes evolved, and points to a single rare event as a trigger for the rapid initial divergence of avian lineages. See Letter p.344

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Figure 1: The diverse beak shapes of extant birds such as (from left) eagles, flamingos and toucans.

From Left: Getty; Klein & Hubert/Nature Picture Library; Juan Carlos Vindas/NIS/Minden Pictures/Getty


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Correspondence to Bhart-Anjan S. Bhullar.

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Bhullar, BA. Catastrophe triggers diversification. Nature 542, 304–305 (2017).

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