Scientists have unearthed marine communities thriving on a millions-year-old whale graveyard. These graveyards form when whale carcasses fall to the sea floor, becoming a sustaining snack for nearby critters. NEW YORK (AP) — Scientists have unearthed communities of marine life — including jellyfish, tubeworms and brittle stars — thriving on a millions-year-old whale graveyard. These graveyards form when whale carcasses fall to the sea floor, becoming a su... [2744 chars]