Level 30 Biology

Videos are listed chronologically by date added, beginning with the most recent

Trying to Save the World's Amphibians

All over the world frogs and hundreds of other amphibians are rapidly disappearing. The situation is so serious that some scientists believe we are witnessing the biggest mass extinction since the dinosaurs.

Living Forever: The Longevity Revolution

Scientists from around the world are racing to answer the question: Can we turn back the human clock? Gerontologist Michael Rose leads us through cutting-edge science in life extension: biotechnology, genetic research, therapeutic cloning and stem-cell research. Living Forever looks at what could...

Mechanisms of Evolution

This video looks at evolution - the gradual change that can be seen in a population's genetic composition - from one generation to the next. The three main mechanisms of evolution, genetic drift, mutation and natural selection are discussed. Counters are used to model the process.

The Cell. How It Works

This program highlights the structures and processes of a cell and the functions of the nucleus using animation and photography. Other topics include: differences between plant and animal cells, different types of cells and cell specialization.

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