French filmmaker, Jean Painlevé, ushers us into the disconcerting realm of echinoderms.
Yes, kids under eleven have been known to regenerate fingertips. Learn more on this Moment of Science.
Starfish can regenerate their legs, worms can survive being cut into, but what creature can actually fix a broken heart? Find out on this Moment of Science.
“Stone” is actually a misleading word, since we might tend to think of a round, smooth pebble. Although some kidney stones are round and smooth, others are jagged, shaped like tiny starfish.