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How big is a Blue Whale?

30 meters!

View History Report
Blue Whale

Introduction Ever wondered which animal holds the title for being the largest creature ever to have existed? It's not a dinosaur, as many might guess, but the majestic blue whale. Now imagine the size of a full-grown adult elephant, the largest land animal. Picture the length of three school buses parked end to end. That's still not big enough. The blue whale outshines them all, making it a fascinating subject to explore.

## The Size of a Blue Whale The blue whale is a marine mammal, specifically a baleen whale. It can reach a confirmed maximum length of 29.9 meters, or about 98 feet. To put it in perspective, that's the equivalent of:

  • Three standard school buses lined up end to end. - The height of a 9-story building. - More than five times the length of an average car. If you thought that was impressive, wait until you hear about its weight. A blue whale can weigh up to 199 tonnes (or 219 short tons). This is equivalent to:
  • The weight of 30 adult elephants. - The weight of about 50 small cars. - The weight of 1,990 average-sized men. In terms of its body, the blue whale is long and slender, displaying various shades of greyish-blue on its dorsal side and somewhat lighter underneath. ## Subspecies and Locations Blue whales aren't all the same. There are four recognized subspecies each found in different parts of the world:
  • B. m. musculus in the North Atlantic and North Pacific. - B. m. intermedia in the Southern Ocean. - B. m. brevicauda (the pygmy blue whale) in the Indian Ocean and South Pacific Ocean. - B. m. indica in the Northern Indian Ocean. There might even be a fifth subspecies living off the coast of Chile.

Migration and Feeding Blue whales are known to migrate between their summer feeding areas near the poles and their winter breeding grounds near the tropics. However, some populations have been found to reside in the same region all year round.

These giants are primarily filter feeders with a diet consisting almost exclusively of krill. Despite their size, they are generally solitary or gather in small groups.

Vocalization and Predators Blue whales produce vocalizations that range from 8 to 25 Hz, which may vary by region, season, behavior, and time of day. Surprisingly, orcas are their only natural predators.

Conservation Status The blue whale was once abundant in nearly all the Earth's oceans until the end of the 19th century. It was hunted almost to the point of extinction until all hunting of blue whales was banned in 1966. As of 2018, the International Union for Conservation of Nature has listed blue whales as Endangered. They continue to face numerous man-made threats such as ship strikes, pollution, ocean noise, and climate change.

In conclusion, the blue whale is a magnificent creature that surpasses all known animals in terms of size. Its grandeur, however, has not shielded it from the threats posed by human activity. As we marvel at the size of the blue whale, let's also remember our responsibility to protect these gentle giants of the sea.

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