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This video describes how scientists silence different genes in regenerating planaria to study the process of regeneration at the molecular level.

This video shows real footage of somatic cell nuclear transfer (SCNT) being performed on eggs.

This animation shows how stem cells from early mammalian embryos can be grown and studied in a laboratory.

This animation gives an overview of how a fertilized human egg develops into an embryo.

This animation shows how zebrafish can rapidly heal wounds to the heart.

This animation shows how somatic cell nuclear transfer (SCNT) creates an embryo from an egg cell and a body cell.

This animation shows how salamanders can replace missing limb tissues with the help of cells similar to stem cells.