Killer Whale, The Largest Dolphin

Orcas, also known as Killer Whales, rule the sea. TheyOrcas breed from winter to early spring near the
are only endangered by human beings, as no othersurface of warm waters. The gestation period is from
sea creature could possibly be a threat to them.16 - 17 months. The babies, called calves, are born
Orca's are predators that will even attack other typesbetween October and March. The calves are able to
of whales. Even with the danger that they represent,swim within thirty minutes of being born, and weigh up
to both humans and other sea life, they are stillto 400 pounds. They are typically 6 to 8 feet long at
considered to be one of the most majestic creaturesbirth. In most cases, each female only gives birth to
in the ocean, and millions of people travel a long wayone calf. Twins are rare. The calf usually stays with it's
every year, in hopes of getting a glimpse of them -mother for a year, and sometimes longer.
from a safe distance.The members of the pods hunt together, and work
Even though they are called whales, they actuallytogether to catch their prey. They survive on a diet of
belong to the dolphin family. Since Orcas are betweenfish, squid, sharks, whales, seals, turtles, octopus,
27 and 33 feet long, and weigh between 8,000 andpenguins, and sea gulls. Their teeth are typically about
12,000 pounds when they are fully grown, with the3 inches long, and 1 inch in diameter. An average Orca
males being larger than the females, they are indeedeats an estimated 550 pounds of food each day or
the largest dolphins in existence. The males can live asmore. While Orcas do not migrate, they may travel
long as 60 years, while the females can live to be ashundreds of miles in order to catch seasonal prey.
old as 90.Orcas have one blow hole, and they breathe air in
Orcas are black, with patches of white on their skin.above the surface of the water through their blow
Their heads are round, and they have very distinctivehole, which is located on top of their heads, above their
beaks. Orcas have a large sickle shaped dorsal fin,eyes. Orcas are very vocal. They make a variety of
and large flippers that are typical of all dolphins.sounds that sound much like clicks, whistles, and even
The dorsal fin is located on the top of the Orcas back,screams. These sounds are used to communicate
and the males dorsal fin can be up to six feet tall, whilewith each other when hunting prey, and for mating
the females is only about four feet tall. Orcas canpurposes. Each individual pod even has it's own accent,
travel at speeds of 30 miles per hour.which makes it possible for members to recognize
Orcas live in pods. The pods are small, and operateeach other.
just as close families do. These pods are made up ofOrcas can be found in tropical waters, as well as
6 to 40 Orcas, and pods stay together throughout theirarctic waters. Pods can be found in coastal waters, as
entire lives. Members of the pods work together towell as deep waters. Orcas have been found in every
protect the young, as well as the sick and injuredocean in the world, so they are not habitats of any
members.particular climate or area - other than salt water.