cool blooded

Blood based on hemocyanin rather than hemoglobin. Hemocyanin is based on copper rather than iron, and as a result the blood is blue rather than red. Hemocyanin works more efficiently at cold temperatures than warm temperatures, unlike hemoglobin.

The octopus is a cool blooded creature, unlike lizards which are generally cold blooded, with exceptions such as the tegu, which is warm blooded during mating season.

Cool Blooded Hispanic

Contrary to the common, hot blooded Hispanic, cool blooded Hispanics are capable of conversing without drawing attention to themselves or interrupting the conversations of people around them. Often thought of as a myth, the cool blooded Hispanics are rare and are often never seen in groups, usually only one is seen within a larger group of hot blooded Hispanics, and due to the nature of hot blooded Hispanics, cool blooded ones go un-noticed to the untrained observer.

Look at those two cool blooded Hispanics, they are having a conversation without raising their voices.