Marine iguana populations face several threats, including habitat destruction, climate change and feral predators (including hawks and feral animals like cats, dogs and rats) that feed on the young.

The stunned iguana also had a run-in with another animal, as caught on camera. The security camera footage shows the iguana suddenly falling from the tree and landing on the concrete driveway.

To what degree depends on the size of the iguana. Larger iguanas can tolerate cold for longer periods, according to Zoo Miami Communications Director Ron Magill. Many iguanas in South Florida have ...