The largest animal on earth is the blue whale (Balaenoptera musculus). The blue whale is a species of whale that lives in the deep seas of the world's oceans. An adult blue whale can be more than 30 meters long and weigh 173 tons, which is larger than an adult dinosaur.
The blue whale's mouth can accommodate many small invertebrates, such as zooplankton and small fish, as food. Their sounds are also among the loudest on Earth, traveling hundreds of kilometers through ocean water.
However, due to human overhunting and environmental pollution, the number of blue whales is gradually decreasing, and it is now listed as an endangered species.
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