Dead creatures are essential to the food cycle, as bacteria turn organic wastes into minerals which living things use for food. The Qur'an mentions this cycle, which was unknown at the time it was revealed, when it says "He brings forth the living from the dead, and produces the dead out of the living". Bacteria are responsible for the winter "spring cleaning" so when living things reawaken, they find food ready for them. This transition is proof that the Quran is from Allah.

Note 175. Bilim ve Teknik, no.234, May 1987, 17.