If it’s possible for one fish to eat its way out ... Spiny dogfish are a type of shark that grow to 4 feet and feed on species like the sand lance, or sand eel, which can reach 18 inches.

In this activity, you will decide which type of fish—moray eels or bull sharks—is more closely related ... Mouths: Enable a fish to eat. Some mouths extend directly from the head of the ...