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This short video explores how a baby’s microbiome is established during birth.

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

This animation shows how a region of the brain called the cerebral cortex develops in a human fetus.

This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest.

This animation shows how a mutation that allows adult humans to digest milk can be lost or spread under different circumstances.

This animation tracks how the human brain develops over nine months of gestation.

This animation shows how varying concentrations of a signaling molecule activate different transcription factors to determine cell fate.

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

This animation describes the formation and fates of the three germ layers in a human embryo.

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

This video explores the evolution of a stickleback fish population over tens of thousands of years, based on fossil data.

This animation shows how quickly an advantageous mutation can spread through a mouse population over multiple generations.