Essential SQLAlchemy

Colophon

The animal on the cover of Essential SQLAlchemy is a largescale flying fish (Cypselurus oligolepis). Flying fish is the more common name for members of the Exocoetidae family, which comprises roughly 40 species that inhabit the warm tropical and subtropical waters of the Atlantic, Pacific, and Indian oceans. Flying fish range from 7 to 12 inches in length and are characterized by their unusually large, winglike pectoral fins. Some species also have enlarged pelvic fins and are thus known as four-winged flying fish.

As their name suggests, flying fish have the unique ability to leap from the water and glide through the air for distances of up to a quarter of a mile. Their torpedo-like bodies help them gather the speed necessary to propel themselves from the ocean (about 37 miles per hour), and their distinctive pectoral fins and forked tailfins keep them airborne. Biologists believe this remarkable trait may have evolved as a way for flying fish to escape their many predators, which include tuna, mackerel, swordfish, marlin, and other larger fish. However, flying fish sometimes have a more difficult time evading their human predators. Attracted by a luring light that fishermen attach to their canoes at night, the fish leap in and are unable to vault themselves back out.

Dried flying fish are a dietary staple for the Tao people of Orchid Island, located off the coast of Taiwan, and flying fish roe is common in Japanese cuisine. They are also a coveted delicacy in Barbados, ...