noun retÂ·roÂ·gresÂ·sion \Ëre-trÉ-Ëgresh-Én\. : a reversal in development or condition: asa: return to a former and less complex level of development or organizationb: subsidence or decline of symptoms or manifestations of a disease.
Habitat. Slime molds live in somewhat variable habitats all over the world. Generally slime molds live in damp areas of vegetation. They live under rotting logs and damp leaves. Some of the other habitats that slime molds will inhabit include water such as tropical fish tanks.
Kingdom Fungi Fungus-like Protists The slime molds and water molds resemble true fungi but they are not closely related to them. Slime molds are decom-posers of rotten logs and leaf litter in forested ecosystems, while water molds decompose algae, leaves, and dead animals in aquatic ecosystems.