Mass migration of stingrays

Some beautiful pictures of mass – migrating stingrays here

Why Evolution Is True

The redoubtable Matthew Cobb has called my attention to several posts on a phenomenon that’s new to me: a mass annual migration of stingrays—in this case the cownose ray Rhinoptera bonasus, found in the Atlantic and Caribbean.  This species forages in groups, largely on clams and oysters. According to the Florida Museum of Natural History, their migrations also involve huge populations.

This pelagic species is also sometimes found in inshore waters. For the most part, this species is known for its migrations to different parts of the ocean (oceanodromous). The environments in which they are found include brackish and marine habitats. They are found at depths to 72 feet (22 m). They are gregarious and make long migrations. The cownose ray population is believed to be increasing in numbers. The migration patterns, in the Atlantic, include a northward movement in the late spring and southward movements in…

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