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The pectoral and pelvic fins are so articulated as to perform the functions of feet, so that the fish is able to walk along the bottom of the sea, where it generally hides itself in the sand or amongst seaweed. All round its head and also along the body the skin bears fringed appendages resembling short fronds of seaweed, a structure which, combined with the extraordinary faculty of assimilating the colour of the body to its surroundings, assists this fish greatly in camouflaging itself in the places which it selects on account of the abundance of prey.

The angler is believed to attract other fishes by means of its lure, and then to seize them with its enormous jaws. It is probable enough that smaller fish are attracted in this way, but experiments have shown that the action of the jaws is automatic and depends on contact of the prey with the tentacle. Its stomach is distensible to an extraordinary degree, and it is not unusual for the fish to swallow a prey nearly as large as itself.

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9y ago

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