Extreme cold may cause iguanas to fall from trees in Florida

Humans aren't the only ones feeling the effects of the bone-chilling that's covered a huge swath of America.

Coldblooded animals like iguanas could be immobilized by the cold while they're sleeping in trees and plunge to the ground in South . Sea turtles may freeze and wash ashore from to New England.

that's set to bring blizzard conditions and record-breaking wind chills has put 90 million people under winter storm watches or warnings.

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