Galapagos- Marine Iguanas

The marine iguanas are the only reptile that can swim. They are cold-blooded so they can only be under the water for 10 minutes or their muscles will become tense and freeze and they cannot swim. The iguana came to the Galapagos as a land iguana, but it had to adapt to the cold water in order to get the food it needs to survive. The iguana is not used to the salt water so when it sneezes, it expels the salt out and the salt lands on it's head.