What type of blood
Fish are cold blooded. " Many cold-blooded animals increase and control their temperature by basking in the sun. Others, especially the invertebrates, require their environment to be warm enough before They are able to move quickly. Many cold-blooded animals need to hibernate if they are to survive cold winters."
Taken from: http://www.howitworksdaily.com/question-of-the-day-what-does-it-mean-to-be-cold-blooded/
Taken from: http://www.howitworksdaily.com/question-of-the-day-what-does-it-mean-to-be-cold-blooded/