On board were thousands of microscopic creatures known as moss piglets or tardigrades.

Microscopic creatures that date back to the origin of life and exist in their billions.

Nematode worms do not impinge much on the public consciousness, except to those gardeners who use the microscopic creatures for natural pest control.

Believing that an entire society of microscopic creatures are living on that speck, he places it atop a clover.

Through the continued study of the ecology of these microscopic creatures, scientists can better understand and more effectively manage myriad populations of both land and sea.