Blacktip sharks are found worldwide in inshore and oshore tropical to subtropical waters. They prefer to stay in the 30m depth zone but will dive to over 60m. The average size is 1.5m (4.9ft) with a maximum reported length of 2.5m (8.5ft). They feed mainly on small schooling shes such as sardines, mackerel and many other bony shes, they are known to breach out of the water whilst feeding. The teeth on the upper and lower jaw are almost identical, they have a broad base and are long and pointy with many ne serrations. The International Shark Attack File has recorded that Blacktips are responsible for 28 unprovoked attacks on humans.