These cells move within the walls of a sponge and form spicules.

It is during gastrulation that the cells leave the outer surface and move inside the region where they will form the gut.

Because the cells move very slowly the process is best seen when speeded up in a time-lapse film.

Our memories are genetic, which I guess is a good thing because our cells move around.

As cells move toward the skin surface, they start dying.

They are organized according to what direction each cell moves the eye.

The human cells moved into the bones of the mice and took up residence there.

Most cells in its body can move around; a few cells can even change from one type of cell to another.

As cells move along the collagen fibers they generate forces that contract the gel.

Once activated, these cells move to the lymph nodes and become mature.