All animals start life as a single egg cell.
Once it has been fertilized, the egg embarks upon a truly remarkable journey as it transforms itself into an embryo. Using time-lapse to compress events that take hours or even days into a few seconds, this video illustrates in vivid color some of the major events of embryogenesis in the African toad Xenopus . To follow what happens during embryogenesis, students and teachers usually have to interpret diagrams and still photographs. From Egg to Tadpole shows directly the dynamics of these processes, and thus makes them far easier to understand and remember. Included is a new animation of gastrulation.