In 15 years he has led 170 expeditions and documented more than 500 previously
unknown species of creatures, including Microgale nasoloi, a
tiny hedgehog - like tenrec that feeds on insects and scurries about the forest floor; Heteroscorpion magnus, a giant scorpion that hides in rock crevices in the northeastern part of the
island; and Cryptosylvicola randrianasoloi, a
tiny, sparrowlike warbler that lives high in the forest canopy.