Here are some websites or videos that highlight the different life forms on our planet.
Microbiology & Microscopy & Tiny Life
Bacteria (by Amoeba Sisters)
Archaea (by Amoeba Sisters)
Archaea, Bacteria & Protists (by CrashCourse)
Journey to the Microcosmos (YouTube Channel) for the amazing world of Microbiology (microscopic animals & animals, protists, bacteria, fungi, & lots of other tiny things in our world)
Sci-Inspi (YouTube Channel)
Slime Molds (Journey to the Microcosmos YT)
Hydra (Journey to the Microcosmos YT)
Monterey Bay Aquarium Life Cams
Monterey Bay Aquarium YouTube Channel