While all clams contribute to ocean health, some species are especially remarkable. The giant clam, for example, can reach over four feet in length and filter massive amounts of water daily.

Washington state's giant clam known as the geoduck became a Chinese delicacy, creating a niche yet lucrative export.

“These iconic giant clams play a crucial role in the ocean ecosystem and reef habitats, and I’m thrilled they may get the protection they need to survive and flourish,” said Dwayne Meadows, Ph.D.

In 1977 scientists discovered that at the deepest parts of the ocean, which people had long ... communities of strange species such as giant clams, eyeless shrimp, and colorful tube worms.