Find out what the research says about oysters, who should have them, and how they may affect your health.

Oysters are considered a delicacy around the world. Discover their impressive health benefits, their risks, and the best ways to prepare them.

Oysters can change their sex. In fact, they will often do it more than once. Juvenile oysters are called spat. Oysters breathe like fish—yes, they have gills. Oysters are vegetarians. They eat algae by filtering it out of the water. A single adult oyster can filter up to 50 gallons of water a day.

Learn the differences between oysters—from European flats to Pacifics—with our guide to oyster varieties.

An oyster is any member of the families Ostreidae (true oysters) or Aviculidae (pearl oysters), bivalve mollusks found in temperate and warm coastal waters of all oceans.

Learn more about five varieties to order, from West Coast species to East Coast oysters.

All the Oysters You Need to Know, from Ubiquitous East Coast to ...

Oysters are large, flat shellfish. Some types are edible either cooked or uncooked, and many people consider them a delicacy. Two common types include Pacific and Eastern oysters. They have an...

Learn about different types of oyster and explore where they came from, and the main difference between true oysters and pearl oysters.

True oysters are members of the family Ostreidae. This family includes the edible oysters, which mainly belong to the genera Ostrea, Crassostrea, Magallana, and Saccostrea. Examples include the European flat oyster, eastern oyster, Olympia oyster, Pacific oyster, and the Sydney rock oyster. Ostreidae evolved in the Early Triassic epoch: The genus Liostrea grew on the shells of living ammonoids ...