Bacteria release gasses that build up inside the body, causing it to float.
You've probably seen things decay before. How does the process work?
Robert Frost once wrote a poem about coming across an old woodpile in the forest. In describing it he refers to the “slow, smokeless burning of decay.” What a great line of poetry. Neat part about it is, it’s also technically correct. Decay is an extremely slow burning process. Or, you could say, fire is an extremely fast decaying process. In either case, what you have is the combination of carbon, oxygen, and hydrogen. Learn more on this Moment of Science.
What came first? The woodpecker or the fungus? Find out on this Moment of Science.
Ever wonder how forensic scientists determine how long a corpse has been dead? Find out on this Moment of Science.
It turns out that in reality turtles are also winners in the marathon race of life. "Death-defying Turtles" on this Moment of Science.