Blue Whale

By:Shuvankar SahaBatch Code:14/02

Advance (Morning Batch)

The Blue Whale has been the largest animal that ever lived on Earth.

Kingdom: Animalia

Phylum: Chordata

Class: Mammalia

Order: Cetacea

Family: Balaenopteridae

Genus: Balaenoptera

Species: B. musculus

Description and Classification

Dimensions and characteristics

Shape- Fishlike with flukes.Length- 100 feet long.Height- About 20 feet tall.Weight- About 200 tons.Color and markings- Molted blue grey with yellow underbellies.

Temper- blue whales are usually calm unless threatened or scared.Habits and behavior- they travel long distances for food and breeding.Defense- speed and whacking with tail.Acquiring food- migrate with krill.Life span- 80to90 years.Other- average heart rate is 8 beats per minute.

Habitat and DietThey live in all of the world’s oceans, following the krill.

There diet mainly consists of krill.They eat up to 4 to 8 tons daily.

They lives in the cold temperate waters. They migrate into the Northern hemisphere in the Spring and Summer. In Fall and Winter they migrate back to temperate waters.

Family Life

Offspring-Number born one, gestation-one year, when- winter in warm waters, Care-they drink up to 379 liters daily, swim beside mother. Babies can grow up 1.5 inches and gain 200 pounds a day. Shelter- in water, other-young are up to 25feet long.

HistoryThey were hunted for their blubber and oil before 1966. they were on the brink of extinction until they made laws against hunting whales.

Conclusion

As you can see that the blue whale is a very worthy species to help save. I hope you will make the right decision.