Orcinus, also known as killer whales, are large aquatic mammals that live in oceans around the world. They have a distinctive black and white coloration and hunt in pods of up to 30 members led by females. Killer whales eat various fish and other marine animals, needing to consume around 230 kg per day. Females give birth to live calves after a 16-17 month gestation period and can have a new calf every 5 years.