stk water bear, phylum tardigrada, top view, cecp 2024

tardigrada eutardigrada heterotardigrada tardigrade water bears moss piglet microscopic microscope micrograph micrography photomicrograph microstructure close closeup detail nature british columbia canada slow tiny optical magnification light microscopy aquatic marine biology invertebrate north america science wild stk bear phylum top view cecp 2024 showing dorsal live