In this video, I create a closed ecosystem using only forest soil, dried leaves, and small branches, without adding any plants or animals. Over time, snails, isopods, springtails, worms, plants, and even predators begin to appear on their own, forming a completely self-sustaining terrarium. Over the course of 100 days, I observe how life emerges from seemingly nothing: seeds germinate, moss slowly spreads, and tiny animals recycle organic matter, keeping the system in balance. A real experiment that shows how every handful of soil is a living universe. This is a calm, educational observation of natural ecosystems, closed terrariums, and the hidden biodiversity found in forest leaf litter. Lens I use to film: https://amzn.to/4qLbx6t #terrarium #closedecosystem #selfsustaining #microecosystem #naturejar #forestsoil #biodiversity #ecosystem #biology #isopods #springtails #moss #paludarium #biosphere #natureexperiment Music: Go Not Gently by Audionautix Artist: http://audionautix.com/ Almost in F - Tranquillity by Kevin MacLeod Danse Macabre - Isolated Harp by Kevin MacLeod Comfortable Mystery 1 - Film Noire by Kevin MacLeod Lost Frontier by Kevin MacLeod Artist: http://incompetech.com/