How scientists aim to combat 'Darwin's nightmare' -- the invasive lionfish

HARI SREENIVASAN: Lionfish have voracious appetites that are upsetting coral reef ecosystems from Rhode Island to Venezuela. But a new nonprofit company has an unusual plan to restore balance to those environments before it's too late. In the latest edition of our online series "ScienceScope," science producer Nsikan Akpan has the scoop. NSIKAN AKPAN: The lionfish is an invasive species. In its native home of the Indo-Pacific, the lionfish is a fierce, unrelenting predator.