A new study finds that degraded rainforest habitats are impacting the health of at least one species of Madagascar's treasured lemurs. Researchers captured, measured and released 113 critically endangered diademed sifakas — and then compared the health of the animals living in intact continuous rainforest versus those in fragmented habitats. In the two most degraded of all fragmented habitats, there were key differences — adults were skinnier, and the growth of immatures was delayed.