How are animals preserved if conditions aren't correct for decay?

If conditions aren't correct for decay: dead animals and plants can be preserved in amber, peat bogs, tar pits, or in ice AMBER: a substance that is formed from hardened tree sap or resin, allows the whole organism to be seen clearly PEAT BOG: Eg, Lindow man. Acidic, oxygen-free conditions in the peat bog meant that the man's skin, hair and many of his internal organs were extremely well preserved (unusual process). Another eg of a body preserved in ice - Oetzi. Mummified ancient man found in 1991, near Australian-Italian border. 5,00 years old, extensively examined, his gut, bacteria, pollen contained in some clothes