Animals & Wildlife Magazine

Tonic Immobility

By Gerard @presurfer
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. Some sharks can be placed in a tonic immobility state by turning them upside down. The shark remains in this state of paralysis for an average of fifteen minutes before it recovers.

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