From NewScientist (2 December 2017):
Source: The Audubon Society
Evolution usually moves at a snail’s pace, but not always. North American birds called snail kites have evolved larger beaks in less than a decade, in order to eat invasive island apple snails that are much larger than the snails they used to eat (Nature Ecology & Evolution, doi.org/cgrv).
They may not be a distinct species, but it’s a graphic illustration of adaptation.
