Orca are called killer whale and are marine mammals in the ocean. Orca is a member of the dolphins family so is considered the largest dolphin in the ocean and are highly social. Killer whale are black and white and are all over the ocean. They’re known for their long dorsal fin that’s on their back. They do not stay in one are they traveled from a very long distance like Alaska to California and many other places all over the world. A killer whale sizes is about about 6 tons (5,443 kg) and grow up to 23 to 32 feet long (7 to 9.7 m) like the size of a school bus. Their average life span in the wild is 50 to 80 years. They live in a group called pods about 40 member in the family and stay together to hunt. They make a wide sounds to communicate and each group of pod will recognize from a long distance. There’s some types of killer whale that are less aggressive and tend to eat fishes and others are more aggressive and search for marine mammals like seals, sea lions, squid, seabirds and other mammals. They can adapt easily to any climate and can be found from the polar regions to the Equator.
A female whale will give birth every three to ten years and will be pregnant for 17- month to one baby whale. At birth a killer whale is called a calf and are about 8.5 feet long and weight about 265 to 363 lbs. They are very protective with their young ones and the adolescents female whale help their mom care for them. When they are born their dorsal fin is flexible and will stiffens as the calf get older. Have you noticed some killer whale have their dorsal fin collapsed over. Is because they are captive in a small area and doesn’t swim very far and goes around in circular pattern. Then the tissue gets less supportive and fall over. But the ones in the wild have their fin healthy and straight since they can swim far and quickly in deep water. Other causes for fin to collapsed can be dehydration, overheating fin tissue due to warmer water, air temperature, injury, stress due to captivity or changes in diet and the reduce of activity that causes low blood pressure, or age. Lastly, killer whale are intelligent and trainable star and they all deserve to be free in the wild with their families.