Tardigrade
The nearly indestructible micro-animal that survives in outer space
Microscopic Life
Life at the edge of visibility, where a millimeter feels like a marathon.
Dust Mite
The invisible roommate living in your pillow by the millions
E. coli
The best-studied bacterium, and mostly your friend
Amoeba
A shape-shifting single cell visible to the naked eye
Human Red Blood Cell
The oxygen courier making 300,000 round trips through your body
Human Sperm Cell
The smallest human cell with the biggest ambition
Bacteriophage T4
A virus that looks like a lunar lander and hunts bacteria
Tardigrade Larva (Water Bear)
The baby version of Earth's most indestructible animal
Paramecium
The slipper-shaped sprinter of the microscopic world
Diatom
A single-celled alga living inside an intricate glass house
Rotifer
A microscopic animal with spinning wheel-like cilia around its mouth
Hydra
A freshwater polyp that can regenerate its entire body from a small fragment
Volvox Colony
A hollow sphere of thousands of cells that rolls through the water
Euglena
A single cell that is both plant and animal at the same time
Nematode
The most abundant animal on Earth, with 57 billion per human
Copepod
The ocean's most numerous multicellular animal, fueling the marine food web
Radiolarian
A single-celled organism that builds intricate mineral skeletons of astonishing beauty