As of 2014, the animal known to have lived the longest life is a quahog clam. The clam, found in 2007 near Iceland, is believed to have been 405 years old. However, quahog clams typically do not live for that length of t... More » Pets & Animals Marine Life

As of 2015, the longest-lived American presidents are Gerald Ford, Ronald Reagan and George H. W. Bush. Both Bush, who is third on the list, and Jimmy Carter, who is fourth, are still living and may eventually overtake t... More » History Modern History US History

The longest living lung transplant patient is a woman identified as Stanford Health Care heart-lung transplant patient No. 39. As of April 2014, she has survived 27 years six months since her transplant, reports Stanford... More » Health Conditions & Diseases
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Clams with a tightly closed shell are alive and can be safely eaten. According to the U.S. Food and Drug Administration, tapping the shell of an open clam that is alive causes the shell to immediately close. Clams that r... More » Pets & Animals Marine Life

Clams are wider and shorter than mussels, often with a "leg" protruding from the shell, while mussels appear dark blue or green, are long and teardrop-shaped and live in clusters attached to a hard surface such as a rock... More » Pets & Animals Marine Life

Coquina is the common name for Donax variabilis, a small clam found along the eastern shores of the United States from New York to Texas. The clams are edible and are also used for decoration. More » Pets & Animals Marine Life

The angelwing clam, Cyrtopleura costata, is a large clam that can be found from Massachusetts to the Carolinas, down through the Caribbean and to the coast of Brazil. It gets its name because the shape of its fragile she... More » Pets & Animals Marine Life