What are the specialized stem cells that allow planarian flatworms to
Chapter 1

Nature did it first

Chapter 2

The recipe for a clone

Chapter 3

The great cloning ban

Chapter 4

Clones in the wild imagination

YOUR GOAL

Master of The copy paste puzzle of cloning humans

Ch 1 · Nature did it first
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007skaty Some female animals reproduce without males through a process called parthenogenesis.

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007skaty Human Parthenogenesis

An egg begins to divide without a father's trace, To grow maternal cells inside a sterile space.

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What appears to be separate is often deeply connected at the source.

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007skaty Planarian flatworms regenerate their entire bodies from injured tissue.

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Identical twins are natural clones

007skaty Monozygotic twins share identical genetic code from a split embryo, but environmental factors quickly make each sibling completely unique.

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The self-copying champions of the wild

007skaty Human duplicates mirror the natural cloning processes scientists mapped in Utah in 1995.

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The regenerating wonders of the sea
BETA

007skaty Piece together regenerating sea creatures to discover how their cells inspire human cloning.

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Fun Fact

Natural clones: The Pando aspen grove in Utah is a single cloned organism weighing over 6,000 tons and sharing one root system.

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Gossip

Would you want an identical twin?

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Quiz

What is the scientific term for identical twins who develop from a single fertilized egg?

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007skaty Many wild plants and animals reproduce by cloning themselves

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Quiz

Approximately what percentage of their DNA do identical twins share at birth?

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007skaty Identical twins exist as natural human clones.

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Quiz

What is the name of the massive, single-clone aspen grove in Utah that shares one giant root system?

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Quiz

Which type of reproduction allows an organism to produce offspring that are genetic clones of itself without a partner?

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Quiz

If a planarian flatworm is cut into multiple pieces, what is the genetic relationship between the regenerated worms?

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Quiz

What are the specialized stem cells that allow planarian flatworms to regenerate entire identical bodies from fragments?

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Quiz

In 2006, which animal at the Chester Zoo surprised scientists by reproducing through parthenogenesis without a mate?

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Quiz

What does the term 'parthenogenesis' literally mean in Greek?

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