Hydrophis cantoris, commonly known as Cantor's sea snake, is a carnivorous marine reptile found in shallow coastal waters and coral reefs of the Indian Ocean and South-East Asia. Measuring 1.2 to 1.5 meters, it features a distinctive pale yellow to olive-brown coloration with dark bands, plays a vital role in its ecosystem by regulating fish populations, and exhibits intriguing behaviors such as ambush hunting and unique mating rituals.