Reach in or crush the shell? A flightless snail-hunting beetle evolved different body shapes even without a sea barrier
Research on Carabus blaptoides beetle reveals adaptive divergence within islands and regions within Honshu, Japan. The study suggests that geographic distance and environmental variation promote population differentiation in flightless animals.
SourceToho University·JournalBiological Journal of the Linnean Society·TypeObservational study·DateAug 16, 2026