Gervais' beaked whale
These are some really big whales. They weigh about 5.6 tons and they are about 22ft. long. They can be found in the deep water in temperate and warmer areas of the Northn Atlantic.
Hour-glass dolphin
They are about 5 to 6 feet long. They weigh approximately 220 pounds. They mostly live in the cooler waters of the Southern Ocean.