Negaprion

Negaprion is a genus of requiem sharks belonging to the family Carcharhinidae. The genus currently contains two recognized species: the broadnose seven-gill shark, Negaprion fronto, and the sandbar shark, Negaprion brevirostris. These sharks are found in warm, shallow waters in tropical and subtropical regions around the world. They are characterized by their broad, shovel-shaped snouts, relatively small eyes, and two dorsal fins of similar size.

The broadnose seven-gill shark is the larger of the two species, typically reaching lengths of up to 3.5 meters (11.5 feet). They inhabit coastal waters, bays, and estuaries, and are known to be opportunistic feeders, consuming a variety of fish, crustaceans, and cephalopods. The sandbar shark, while also large, is generally smaller, with adults averaging around 2.5 meters (8.2 feet). They are found in a wider range of habitats, including coral reefs, continental shelves, and even offshore islands. Their diet consists primarily of fish, but they will also eat crustaceans and mollusks.

Both species of Negaprion are viviparous, meaning they give birth to live young. The gestation period can be quite long, and litter sizes vary. They are considered to be relatively slow-growing and late-maturing sharks, which makes them vulnerable to overfishing. Conservation efforts are in place for some populations, as their populations have declined in certain areas due to human activities. Their broad snouts are thought to be useful for foraging in sandy or muddy bottoms.