The blue whale has an enormously long body that is slim and narrow, which means that they are able to cut through the water with ease. Blue whales are found in both polar and tropical waters worldwide, migrating between the two at different times of year. Although the three blue whale sub-species do differ slightly in size and colouration, the main difference between them is where they live with Northern another. With some individuals growing to more than 100ft long the blue whale is not only the largest animal species in the world but it is also thought that it could br the biggest creature thay has ever existed. There are three recognized sub-species of the blue whale which are the northern blue whlae, the Southers blue whale and the pygmy blue whale that despite it’s name, still reaches an average length of 24 meters.
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Although their enormous size and slow-maturing nature has meant that the world’s blue whale popularion has never been greatly numerous, they have drastically declined in numbers due to having been hunted by humans particularly over the past 100
Although their enormous size and slow-maturing nature has meant that the world’s blue whale popularion has never been greatly numerous, they have drastically declined in numbers due to having been hunted by humans particularly over the past 100