A colony of 100 million flame shells (Limaria hians) was discovered in Scotland, and is thought to be the biggest in the world. Flame shells are bivalve mollusks that are shaped a bit like scallops—but they have bright orange tentacles exuding from their shells.
Despite their bright color, flame shells are very hard to spot because they hide in self-constructed felt-like nests. They bind together stones and shell pieces to build a nest, and hide within. The only way to see the live animal is to tear open the nest.
Photo Credit: Graham Saunders