Mitosis happens when an animal cell divides resulting in two daughter cells that have the same number and kind of chromosomes as the parent cell.
The stock science video below shows mitosis in an animal cell. Cells from a Chinese hamster ovary are shown undergoing mitosis, beginning with a cell spread on the substrate, followed by prophase, anaphase, metaphase, telophase, cytokinesis, and finally reattachment of the two daughter cells to the substrate. © SPL/Science Source