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Name: Diana T
Status: educator
Age: 40s
Location: N/A
Country: N/A
Date: 2002028
Question:
One of my 6th grade science students asked me the following question, could you help me with the answer? Here is the question: Why does an earthworm have five hearts?

Replies:
They are not REALLY 5 hearts but a series of chambers that are contiguous...if I remember correctly.

Peter Faletra Ph.D.
Assistant Director
Science Education
Office of Science
Department of Energy

As I recall, they are called Aortic Arches, and function as a heart.

---Nathan A. Unterman

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