Barracudas are found all over the ocean, but mostly in tropical and subtropical regions where food is abundant. Adult barracudas tend to stay near coastal areas and live near coral reefs, mangroves and seagrasses. Young barracudas are typically found in shallow waters and estuaries where the adults spawn and breed.
Voracious predators of the reef, barracudas rely on their swift movements to attack their prey. They use the coral reef to hide and wait for smaller species of fish, crustaceans, squid and other marine invertebrates. The female barracuda spawns its eggs and releases them into the water, where they are fertilized externally and seek shallow mangrove-covered areas for protection. When the larvae reach a certain length, they move to open water and then to nearby coral reefs to feed.