Four New Chameleon Species Found in Tropical “Sky Islands”

Four new chameleon species discovered in Madagascar's isolated mountaintop ecosystems, two named after pioneering female scientists. Sky islands create evolutionary pressure chambers where species diverge in radical isolation.

Madagascar's mountaintop 'sky islands' produce endemic species found nowhere else on Earth

Two species named after female pioneers: Calumma juliae and Calumma francaerosae

Geographic isolation accelerates speciation—evolution as geography's consequence, not time's alone