Short answers, pulled from the story.
The ocean quahog named Ming lived to be 507 years old before it was accidentally killed by a researcher in 2006. This individual held the title of the oldest known animal on Earth and spent its entire life buried in the cold waters of the North Atlantic. Ming witnessed the construction of the first transatlantic telegraph cable and the end of the American Civil War.
The Algonquian people of Eastern North America transformed the hard clam Mercenaria mercenaria into wampum, which served as a form of currency and sacred art. These shells were drilled and strung together to act as a medium of exchange and a record of treaties between Native American tribes and European settlers during the 17th century. White wampum represented peace while black wampum represented war or death.
A single adult hard clam can filter up to 50 gallons of water per day by removing algae and particulate matter from the water column. This process known as filter feeding improves water clarity and quality while benefiting the entire coastal environment. A dense population of clams can significantly reduce the risk of harmful algal blooms that deplete oxygen levels.
In Islam clams are considered halal in three of the four major Sunni schools of thought but are forbidden in the Hanafi school which restricts halal status to fish. In Judaism clams are not kosher because they lack both fins and scales which is a requirement for seafood to be considered permissible under Jewish law. These religious distinctions have influenced the culinary traditions of many communities.
The giant clam Tridacna gigas is the largest bivalve mollusk in the world with some specimens growing to over 1.2 meters in length and weighing more than 200 kilograms. Native to the coral reefs of the Indo-Pacific these massive creatures play a crucial role in the marine ecosystem by providing habitat for small fish and invertebrates. Giant clams are currently threatened by overfishing and habitat destruction.