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A frog is a cold-blooded animal, and humans are warm-blooded, so our body burns energy

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or perspires to maintain the same 98.6 degrees.

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The cold-blooded frog's body temperature goes up and down with the temperature of its surroundings.

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Although frogs love water, when I hold it over this pot of boiling water, this frog

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is very uncomfortable and climbs to get away from it.

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The water in this pot is room temperature, 69.4 degrees, so he's comfortable when I put

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him in.

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If I turn the burner on low flame, his body temperature will adjust and slowly he will

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heat up with the water.

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The water temperature has risen to 80 degrees and the frog is the same temperature and still

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comfortable.

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If I turn up the burner slowly again, he won't notice because he'll continue to change to

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be the same as his surroundings.

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When we started, I held the frog over the first pot of boiling water.

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He was uncomfortable and he tried to get away from the heat.

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But now, because we're raising the temperature slowly, he doesn't recognize the danger he's

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in.

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He just keeps going along with the changes in his surroundings.

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Eventually, we can turn up the burner to a deadly boil.

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He will just keep trying to adjust with it.

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By the time he realizes it's killing him, it's too late.

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He won't notice the time because he just keeps changing himself to go along with the changes

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in his surroundings.