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Mutations in Cancer

This video provides an overview of the types of genes that, when mutated, can lead to the development of cancer.

Planarian Regeneration and Stem Cells

This video discusses the remarkable regenerative capabilities of the planarian, and how biologist Alejandro Sánchez Alvarado uses them to study the biology of stem cells.

Salamander Limb Regeneration

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

How Tumors Grow

This animation shows how a tumor forms, recruits blood vessels, and enters metastasis.

Meiosis

This animation shows how meiosis, the form of cell division unique to egg and sperm production, can give rise to sperm that carry either an X or a Y chromosome.