The Tentacled Forest The episode is set in the northern forest of Tokyo, 200 million years into the future. The episode focuses on five species: (1) Lichen Trees, a bush-like species evolved from simple lichens; (2) Forest Flish, a smaller species of flish with hooks for feet so it can hang upside down on tree branches to rest; (3) Megasquid, a five-metre-tall (16 ft) squid with rhinoceros-like skin; (4) Squibbon, an arboreal species of squid that swing through trees and have stereoscopic vision; (5) Slithersucker, an arboreal species of predatory and giant slime mold. This episode explores the strange forms of life in one of the few places on Earth where there is still consistent rain and plants can grow. It ends by suggesting that the Squibbons may eventually develop sapience and create a new civilization.