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Blue Whale

By Devin Young

  • Blue Whales are the biggest animals ever known on Earth. They can weigh up to 200 tons! Blue Whales live about  80 to  90 years in the wild. A Blue Whale calf weighs about  27,000 kilograms at birth!

    Chapter 1


  • A Blue Whale’s  tongue can weigh as much as an elephant. Their heart can weigh as much as a car! When a Blue Whale exhales ,the spray from its blowhole can reach nearly 30 feet into the air; even though we can’t hear them , the blue whale is one of the loudest animals on the planet communicating  with moans and groans.
  • A Blue Whale’s diet consists almost exclusively of krill, a small creature that usually only grows 1-2 centimeters. They consume about 4 tons of krill in one day during certain times of the year.  Instead of consuming krill, a baby Blue Whale consumes milk during its first 6-18 months.

 Chapter 2


  • These young Blue Whales can drink as much as 150 gallons of milk in 1 day. This will continue until they can hunt and eat on their own. The older Blue Whales can consume as many as 40 million krill in 1 day.
  • It is amazing that even though Blue Whales can weigh up to 200 tons they can swim at 5 miles per hour and can accelerate to more than 20 miles per hour. This helps them catch krill very easily.
  • Blue Whales live in all oceans across our Earth. They occasionally swim in small groups but mostly the swim alone. Blue Whales often spend summers feeding in polar waters and undertake lengthy migrations to the Equator as winter arrives.

Chapter 3


  • Blue Whales have excellent hearing. For example they can hear other Blue Whales that are 1,000 miles away. This helps them communicate when they are migrating.
  • Blue Whales are on the Conversation Union red list for endangered animals. They have few predators but are known to be killed by shark attacks. Also, killer whales have a part in making this animal endangered.

Chapter 4


  •  Between 1900 and the mid-1960s, about 360,000 whales were killed because of whale oil. Whale oil is oil that has been extracted from a whale’s lubber. Whale oil is mostly used for man-made chemicals, materials and tools, and margarine and transmission oil.
  • This is a main part of why blue whales are so endangered. In 1966 the International Whaling Commission gave them protection from the hunters. Even though they got protected from being hunted, they have only made a very slim recovery from when they were hunted in the 1900s.

  • As you can see the Blue Whale is an amazing animal. For example, Blue Whale calves can gain 200 pounds every day for its first year. Sadly, Blue Whales are endangered because they were hunted and killed for their whale oil.

Chapter 5


  • We need to save them from dying off and becoming extinct. I hope you have learned many cool facts about this amazing animal.
  • Society, National Geographic. "Blue Whales, Blue Whale Pictures, Blue Whale Facts." National Geographic. N.p., n.d. Web. 19 Jan. 2017.

    "Home." Whale Facts. N.p., n.d. Web. 19 Jan. 2017.


    "Amazing Facts about the Blue Whale." OneKind. N.p., n.d. Web. 19 Jan. 2017.