March/April 2024

The picture above features a simplified version of the artful and informative illustration from the perspective piece “Moult terminology: envisioning an evolutionary approach” by Peter Pyle, Steve N. G. Howell, Danny I. Rogers. and Chris Corben. Twenty years ago these same authors originally proposed the term 'preformative moult' and defined four strategies to help elucidate the evolution of moults in birds (Howell et al. 2003; Condor, 105:635-653). The illustration, by artist and biologist Lauren Helton, depicts an avian evolutionary tree with moult strategies mapped onto it.

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