Trilobites: Things Looked Bleak Until These Birds Rapidly Evolved Bigger Beaks Scientists thought that invasive large snails spelled doom for endangered North American snail kites, until some of the birds started eating them. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:NASA asteroid ALERT: Asteroids 'STRONGER and HARDER TO DESTROY' than first thoughtMoon mystery REVEALED: Is THIS why there are swirls on the face of the moon?SpaceX Dragon REVEALED: See inside SpaceX capsule that docked with ISS - WATCHSpaceX launch news: Could humans ever live on the Moon? Elon Musk thinks YESYellowstone volcano: How 'sleeping GODZILLA supervolcano could tear GUTS out of US'Eli Lilly Will Sell Half-Price Version of Humalog, Its Popular Insulin