Peruvian authorities said Monday they had seized about 1.3 US tons of illegally harvested shark fins, a delicacy in some Asian countries that has placed the predatory creatures at grave risk. Peruvian authorities said Monday they had seized about 1.3 US tons of illegally harvested shark fins, a delicacy in some Asian countries that has placed the predatory creatures at grave risk. Ecology Phys.org – latest science and technology news stories