The most advanced molecular techniques contribute significantly to the identification of endangered sharks, rays and skates, collectively known as elasmobranchs, and are therefore fundamental to the enforcement of the laws and regulations governing trade in fins and meat from these animals. The most advanced molecular techniques contribute significantly to the identification of endangered sharks, rays and skates, collectively known as elasmobranchs, and are therefore fundamental to the enforcement of the laws and regulations governing trade in fins and meat from these animals. Plants & Animals Ecology Phys.org – latest science and technology news stories