Sport fishing is popular with barracuda and marlin being the main target fish. Sharks, barracuda, and sharp dangerous coral are plentiful in salt water. Deep-sea life forms include sea bass, yellowfin tuna, barracuda, and several types of whale. Smaller parrotfish are relatively defenceless herbivores, poorly defended against predators like barracuda. In April 1964, the Plymouth Barracuda, a Valiant sub-model, was introduced. Similar elastomeric bumpers were available on the front and rear of the 1970-71 Plymouth Barracuda. Meanwhile, Memphis and Sway rekindle their relationship while stealing a Plymouth Barracuda. Opportunistic predators such as jack and barracuda also appear. It flew in company with a Fairey Barracuda. They were renamed "Barracuda", "Bass", and "Bonita" in December 1955. The same technique that spawned the 1964 Barracuda was employed for the Duster. The redesign for the 1970 Barracuda removed all its previous commonality with the Valiant. The Challenger was essentially an enlarged Barracuda. The second-generation Barracuda, built from 1967 to 1969, though still Valiant-based, was heavily redesigned. Other barracuda species are found around the world.