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A new study has discovered a powerful force that is now driving evolution on Earth.

Meet the biggest animal in the world

The Antarctic blue whale (Balaenoptera musculus ssp. Intermedia) is the largest animal on the planet, weighing 400,000 pounds (approximately 33 elephants) and reaching 98 feet in length. A whale has a heart the size of a small car and consumes about 7,936 pounds of krill per day during the main foraging season.

It is the loudest animal on the planet, even louder than a jet engine—its call reaches 188 decibels, while the call of jet aircraft reaches 140 decibels. The low-frequency whistle of whales can travel hundreds of miles and is likely to be used to attract other blue whales.

Antarctic blue whale "critically endangered"

The number of blue whales in Antarctica was greatly reduced by the commercial whaling that began in the southern Atlantic Ocean in 1904. Although legal protection was provided by the International Whaling Commission in the 1960s, illegal whaling continued until 1972. Starting from about 125,000 in 1926, the number decreased to about 3,000 in 2018. This species is listed as "critically endangered" in the IUCN Red List.

Recently discovered an astonishing number of Antarctic blue whales

A team of scientists led by the British Antarctic Survey (BAS) shared some good news when they returned from their recent subantarctic expedition on South Georgia. During the 2020 expedition, they counted 55 Antarctic blue whales, which they called "unprecedented." South Georgia waters are still important summer feeding grounds.
After three years of investigation, we are very happy to see so many whales once again come to South Georgia for food. This is a place where whaling and seal hunting are widely carried out. Obviously, the protection against whaling has worked, and the density of humpback whales seen now is similar to the density when whaling first started on South Georgia a century ago.