Amazing facts about Blue Whale

Blue Whale

Blue whales are the largest animal that ever lived on earth. Here are some facts about these amazing creatures.

• Blue whales can weigh up to 200 tons and reach 100 feet ( 30 meters) long.
• Blue whale's heart is as large as a small car.
• The heartbeat can be detected from two miles away.
• A human baby can crawl through the blue whale's main arteries.
• Blue whale's mouth big enough to fit about 100 people.
• Their tongues can weigh as much as an elephant.
• Blue whales have bellybutton.
• Average lifespan of blue whale is estimated at around 80 to 90 years.
• Blue whales have two blowholes.
• The spray from blue whale's blowhole can reach nearly 30 ft (9m) into the air.
• Blue whales can reach speeds of 50 km per hour (31 mph).
• Blue whale can dive up to 1640 feet.
• Blue whales sounds reach 188 dB, louder than a jet engine (which just 140 dB).
• Blue whale can communicate each other up to 1.000 miles (1.600 km).
• Blue whales look true blue underwater, but on the surface their coloring is more a mottled blue-gray.
• Krill is blue whale's main food. Krill is tiny shrimplike animals that is less than 1/1000th blue whale size.
• Adult blue whale eats about 4 tons of krill a day.
• Blue whale is a mammal rather than fish; it gives birth and nurse live young.
• The period of pregnancy is about one year.
• Blue whale calves can weigh up to 3 tons and 23-27 feet in length.
• Blue whale calves drink 380–570 litres of milk a day.
• A blue whale's milk supposedly tastes like a mixture of fish, liver, milk of magnesia, and castor oil.
• Baby whale calves gains about 200 pounds (91 kilograms) every day for its first year.

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Sources: National Geographic, Buzzle, Discovery Education