......Killer Whales

.......Killer Whales are also called orca. Killer whales have black and white bodies. Orcas eat fish, squid, dolphins, porpoises, seals, and other whales. Different orcas that live in different places can eat different foods for them. Killer whales travel in groups; the groups are called pods. There are about to 24 orcas that make a pod. Adult male orcas (killer whales) can live for 30 years. Adult female orcas (killer whales) can live up to 50 years, some female live up to 90 years. Female orcas can have their young when they are 14. Male killer whales can grow up to 30 feet. And female killer whales are half the length of male killer whales. The killer whale is black and white. Killer whale have a high triangular dorsal fin in between their head and tail, and flippers. Killer whales have more than 48 teeth.  Killer whales eat seals, seabirds, fish, and sometimes other whales. Female killer whales give birth to their young that is about 7 feet long. 
......Killer whales are toothed whales. Killer whales have one blowhole. Killer Whales grow up to 27-33 feet. They can weigh from 8,000-12,000. Male killer whales are bigger than female killer whales. Killer whales are black and white. They have a dorsal fin. The male’s dorsal fin is up to 6 feet. Female’s dorsal fin can grow up to 4 feet Killer Whales live in groups. WHALES

The Blue Whale

.....Blue whale is the largest animal known to man. The blue whale can grow up to 100 feet (30 meters) long and can weigh over 150 tons (135 metric tons). It has speckled blue-gray and white skin, relatively small, thin flippers, and a large, strong tail.
The blue whale strains food from the water using 260 to 400 thin, fringed plates called baleen, hanging from each side of its mouth. The whale mostly eats krill, a shrimplike animal. It lunges through masses of krill, taking in tons of water and food. It then closes its mouth and squirts the water out through the baleen, trapping the krill inside.
......Blue whales usually dive no deeper than about 300 feet (90 meters) because krill usually live closer to the water surface. The whales surface to breathe three to six times at a time, then dive for several minutes. When surfacing, they exhale sharply through their blowholes (nostrils), producing a loud sound.
..... Blue whales live in all the oceans. They feed in waters in or near the polar regions. They mostly travel in groups of two or more. Two whales often work together while feeding, using each other's bodies as walls to help trap prey. Blue whales migrate to waters closer to the equator to breed. They make loud, low moans that can travel great distances through the water. Scientists think the moans allow whales to communicate within an area of at least 100 square miles (260 square kilometers).
.......During the early and mid-1900's, the blue whales were hunted nearly to extinction. But their numbers have steadily increased since the 1960's, when many countries agreed to stop or severely limit the hunting of blue whales. In the early 1990's, an estimated 10,000 to 15,000 blue whales survived.