In nature, animals and a lot of interesting things that we never even seen, only heard of them.
I want to show you 15 largest animals of the world, classified by different categories, such as mammals, reptiles, birds, amphibians, and t . on The largest animal in existence - the Blue Whale. blue whale (Balaenoptera musculus) is a marine mammal. With 30 meters in length and 180 tons or more in weight, it is - the largest known animal we've ever had. Blue whale's tongue weighs about 2.7 tons, the average size of an Indian elephant, and his heart weighs about 600 kg and is the largest known in any animal. Not only is the size of a blue whale heart is comparable to car Mini Cooper, but it is also comparable in weight.