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How to Deactivate a Shark

1 decade 2 years 8 months 4 weeks ago

In keeping with this week's trend of videos in the theme "How to Deactivate a ____", Michael Rutzen demonstrates how to "deactivate" a shark and balance it on its nose.

Tonic immobility is a natural state of paralysis that animals enter, in most cases when presented with a threat. Some scientists relate it to mating in certain animals like the shark. Scientists believe that tonic immobility, displayed by sharks, may be linked with defense, because female sharks seem more responsive than others. During tonic immobility, the dorsal fin(s) straighten, and both breathing and muscle contractions become more steady and relaxed. [wiki]