Cold-blooded animals, also known as cold-blooded animals, are animals with the exception of mammals and birds. Most of the animals on the earth are cold-blooded animals. Lobster (scientific name: Palinuridae) is the general name for species under the family Lobsteridae of the phylum Arthropoda, the order Decapoda, and the order Lobster. Lobsters do not belong to mammals and birds, so lobsters are cold-blooded animals.