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-- "Home." Whale Facts. N.p., n.d. Web. 11 Jan. 2017.
-- "Blue Whale." WWF. N.p., n.d. Web. 11 Jan. 2017.
-- "Department of Environmental Conservation." Blue Whale Fact Sheet - NYS Dept. of Environmental Conservation. N.p., n.d. Web. 11 Jan. 2017.
-- Society, National Geographic. "Blue Whales, Blue Whale Pictures, Blue Whale Facts." National Geographic. N.p., n.d. Web. 11 Jan. 2017.
-- "Why Are Blue Whales Endangered?" Reference. N.p., n.d. Web. 11 Jan. 2017.

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- International Whaling Commission.
- Marine Mammal Protection Act of 1972
- the Endangered Species Act of 1973

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- whale blubber & oil.
- technology and boating which made it easier for whalers to hunt, kill & capture whales.
- lead to a highly competitive (international) whaling market.
- continually hunted by competitors until near extinction.
- most killings remained limited to the coast line

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overkill by human for money:

Oil – Lamp oil, soap, perfume, candles and cosmetics

Food – Cooking oil, margarine and whale meat

Clothing – corsets and umbrellas

and various other products including tools such as fishing hooks.

In addition to hunting, also because of the pollution and overcrowded shipping lanes.

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A 2002 report estimated there were 5,000 to 12,000 blue whales worldwide, in at least five groups. The IUCN estimates that there are probably between 10,000 and 25,000 blue whales worldwide today. Before whaling, the largest population was in the Antarctic, numbering approximately 239,000 (range 202,000 to 311,000).

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- largest mammal.
- length:24-30m.
- he largest ever recorded was a gargantuan 33.5 m long.
- Females are up to 10 m longer than males.
- weigh up to 200 tonnes.
- blue-grey. light grey.