Almost all dead whales will explode, just like inflated balloons. Whales eat a lot of food before they die. After death, food and corpses will be decomposed by microorganisms. Methane, hydrogen sulfide and ammonia are produced after digestion.
The entrance and exit of whale's body are often blocked by internal decay. In addition, the whale's skin is often thick and durable, and the generated gas slowly accumulates and compresses in the body until it can no longer be accommodated, and an explosion will occur.
The process of whale self-explosion
The phenomenon of self-explosion can also occur in other animals, but when the animal weighs several tons, the effect of self-explosion will be more impressive than that of roadside mice.
Whales are very big. Blue whales can grow to 100 feet long and weigh 150 tons. In water, such a huge weight is completely supported by the buoyancy of water. But once on land, the huge body oppresses the whale's internal organs, which brings them great pressure, because the weight is enough to endanger its life.
The whale's thick fat layer will slowly dehydrate, and it needs 2- 10% of its body weight every day to maintain its life. After being stranded, whales have little chance of survival. After a long period of gas accumulation after death on shore, it will explode on its own.