Ancient, Slippery, Enormous 'Snot Otters': Looking for Hellbender Salamanders
Photo: Rebecca jacobson/pbs newshour
Kim Terrell draws a blood sample from a hellbender salamander while two volunteers hold the animal still.
Timing this task is critical. Terrell needs to get a blood sample as close to the time of its capture as possible. Waiting elevates the level of stress hormone -- a result of its surprise capture -- in the salamander's blood.
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