Y.Jacob



=Hi. My name is Jacob. I am learning about the humpback whale. Welcome to my page.= The whitish-gray and black humpback whale sucked up krill through his baleen in the cold arctic waters on a warm summer day because that is what he eats. By Jacob Y.   4/08
 * The Humpback Whale **

=  The Humpback Whale   = =    =   By Jacob Y 4/08 Humpback whales are warm blooded. They have two blowholes on the top of their head to breathe air. They weigh as much as 11 elephants or 25-40 tons. Humpback whales are 45-50 feet long. Humpbacks are white to gray to black. Their belly is white. The fluke fin is 18 feet long. Their flippers can be 1/3 of their body’s length. They are baleen whales.

Humpback females have live births. Babies are called calves. Females have a calf every 2-3 years. A humpback whale calf is between 10-15 feet long at birth and weighs up to 1 ton. They stay and nurse with the mom for about 1 year.

An orca is the humpback’s only predator. They are protected now but were hunted in Russia until 1970.

Humpback whales are found in all world oceans. In the summer they are found in polar waters and in the winter they migrate to tropical waters to breed. Humpback whales eat plankton, plants, small fish and krill. They feed only in the summer. They eat 1 1/2 tons of food a day. Baleen whales are whales that have sort of like a broom in their mouths. They suck water and food in their mouth. The baleen acts like a strainer. It strains the food out of the water.

The humpback sings under water. No humans have seem them. The whale song lasts up to 20 minutes.

Scientists think there are about 30,000 humpbacks. They travel in large groups. They can dive 500-700 feet and be under water for up to 30 minutes. They swim 3-9 miles per hour. Humpbacks can live for 40-50 years.

Why is the ocean blue? The ocean reflects the blue sky.

How many oceans are there in the world? There is only one main ocean.

What are the main "oceans" called? The Arctic,the Atlantic,the Indian, the Pacific and the Southern.

What is a sea? A sea is like a little ocean with some land around it.

Why is the ocean salty? The salt is from rocks and soil that washed into the ocean.