![]() ![]() Two other families, the butterfly rays (Gymnuridae) and cow-nosed rays (Rhinopteridae), are found in shallow coastal waters of tropical and warm temperate seas and reach widths of about 2 metres. Notable members of this family include the spotted duckbilled ray ( Aetobatus narinari), a large Atlantic and Pacific species that can cause deep wounds with its tail spines, and the bat stingray ( Myliobatis californicus), a Pacific form noted for its depredations on the shellfish of San Francisco Bay. They have very long, slim tails and, unlike other rays, have heads that project beyond the body disk. The latter, forming the family Myliobatidae, comprise several genera found in warm and temperate coastal waters. Some of the manta rays and eagle rays are so armed. The spines cause serious, extremely painful wounds that, if abdominal, may result in death.Ĭertain other rays may also possess tail spines. They lash their tails when stepped on, and large stingrays can exert enough force to drive their tail spines into a wooden boat. Stingrays eat worms, mollusks, and other invertebrates, sometimes badly damaging valuable shellfish beds. They are bottom dwellers and often lie partially buried in the shallows. ![]() Stingrays inhabit warm temperate and tropical waters, sometimes in great abundance. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!.Learn about the major environmental problems facing our planet and what can be done about them! ![]() Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.Britannica Beyond We’ve created a new place where questions are at the center of learning.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.Demystified Videos In Demystified, Britannica has all the answers to your burning questions.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives.Coco Cay, Up Up and Away, Aerial View of the Island., Perfect Day at Coco Cay. Day 5 - Orlando (Port Canaveral), Florida. Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions. Day 1 - Orlando (Port Canaveral), Florida. ![]()
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