Members of the Carcharhinidae are found in all oceans, mostly in tropical waters. There are the largest shark family, with 12 known genera and 58 species worldwide. Small species often occur inshore while the large species often occur offshore. These fishes are strong and active swimmers. They can occur either solitary or in small school. All species are live-bearing, with young born fully developed. They feed on any animal that may present in their habitat, and some large species are known to attack human.