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Name: Alex W.
Status: student
Age: 9
Location: N/A
Country: N/A
Date: 2000-2001
Question:
It has been said that when dolphins bleed under water that their blood is green. Is this true? If so Why? Thank you Alex

Replies:
It is a matter of light, not of the actual color of the blood. Dolphin blood is red, just like ours. However, water is actually slightly colored, and lets blue light through better than red light. Below about 30 feet, so little red light remains thateverything that is actually red appears green or blue.

Richard E. Barrans Jr., Ph.D.
Assistant Director
PG Research Foundation, Darien, Illinois

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