The blue whale, the largest animal on our planet, has some astonishing anatomical features. Among them is its penis, which is the largest in the animal kingdom. On average, it measures between 2.5 to 3 meters in length, with a diameter of 30 to 36 centimeters. Interestingly, the blue whale's penis is normally hidden inside its body, and only emerges during intercourse. Unlike many mammals, it's believed that the blue whale achieves an erection to the height of the elasticity of its tissue, rather than blood flow. The Icelandic Phallological Museum even houses a portion of a blue whale's penis, measuring 100 centimeters in length and weighing 70 kilograms. This unique aspect of the blue whale's anatomy is a testament to the wonders of the natural world. Stay sharp with Tile!