Neanderthals made extensive use of coastal environments than previously thought. A new study indicates they were skillful fishers and seafood was an important element in their diets. Researchers have unearthed a cave in Portugal and found a huge, structured deposit of remains dating between 106,000 and 86,000 years ago, which includes mussels and limpets. The study also revealed that the Neanderthal diet also involved mussels, crustaceans, and fish as well as other marine mammals. The recent findings have now confirmed that habitual consumption of seafood played a crucial role in the development of Neanderthals.