The school shark is a houndshark of the family Triakidae, and the only member of the genus Galeorhinus. Common names also include tope, tope shark, snapper shark, and soupfin shark. It is found worldwide in temperate seas at depths down to about 800 m (2,600 ft). It can grow to nearly 2 m long. It feeds both in midwater and near the seabed, and its reproduction is ovoviviparous. This shark is caught in fisheries for its flesh, its fins, and its liver, which has a very high vitamin A content. The IUCN has classified this species as critically endangered in its Red List of Threatened Species.

Adobo or adobar is the immersion of food in a stock composed variously of paprika, oregano, salt, garlic, and vinegar to preserve and enhance its flavor. The Portuguese variant is known as carne de vinha d'alhos. The practice, native to Iberia, was widely adopted in Latin America, as well as Spanish and Portuguese colonies in Africa and Asia.