Endotherms produce their own heat; ectotherms rely on environmental heat. Most ectotherms are cold-blooded while most endotherms are warm-blooded, but there are exceptions. Mammals are endotherms, and reptiles and amphibians are ectotherms.Know More
Ectotherms must absorb heat from their environment to maintain their body temperature, and the weather can have a profound effect on their behavior. However, they do not have to eat as much as their endotherm counterparts. Crocodiles and alligators, for example, can go weeks or months without eating, but they also remain inactive during most of the day and save their energy for eating, mating and protecting their territory. Endotherms, on the other hand, are able to produce far more energy but must eat regularly. Mammals tend to be more active than reptiles, but they must eat far more to survive.
Scientists are still not sure whether dinosaurs should be classified as endotherms or ectotherms. If dinosaurs were cold-blooded, they would have been far slower than many experts believe. If they were warm-blooded, they would have had to eat a tremendous amount of food. Many now believe that dinosaurs were neither true endotherms nor true ectotherms and had a unique metabolism. This may be why they died off while many reptiles and amphibians survived.Learn more about Zoology
The primary difference between fish and amphibians is that fish are only able to live in water and amphibians are able to live both in and out of water. Other differences between fish and amphibians include habitat, differences in skin type and the presence of limbs.Full Answer >
According to Reference.com, there is no difference between a pollywog and a tadpole. Both words describe the larval stage of the toad or frog. These amphibians for the most part live in the water during this stage of their lives.Full Answer >
Hippopotamuses are mammals, while crocodiles are reptiles. Although both of these animals spend the majority of their lives in the water, each creature has characteristics that make them very different from one another, including significant physical differences and differences of habitat.Full Answer >
The largest difference between the Kangal and the wolf is that they are separate species. The wolf is known as Canis lupus, while the Kangal is a domestic dog and is scientifically known as Canis familiaris. Although dogs are descended from wolves, they are not considered wild and are more likely to retain juvenile traits because of domestication. Wolves are also generally more intelligent than dogs due to larger brains.Full Answer >