One reason might be the 'false economy' of having to heat up their bodies. Approximately 80% of human energy goes towards heating our bodies to a stable temperature. However, for fish and reptiles to do this, it may not have been a evolutionary advantage. For example snakes and crocodiles can gorge themselves on one large meal and then not have to feed again for months. This would not be possible if they had a 'central heating system'. Likewise fish would need to devote large amounts of energy towards heating up their bodies in colder water and it makes sense for them to merely adapt to it instead. An example of this is the fact that although fish are exothermic, many species are capable of surviving in large temperature variations (so long as they are not too rapid) that would quickly kill most mammals. Therefore although mammals are warm blooded, they are far less tolerant of changes in temperature that deviate too far from whatever their species ideal is.
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Most fish are cold blooded, though there is evidence that some sharks may be warm blooded.cold blooded
Fish, amphibians, reptiles (not turtles as they don´t have teeth).
Clown fish are cold-blooded, which means their body temperature changes with the surrounding environment. They are ectothermic, relying on external sources to regulate their body temperature.
There are many animals that are ectotherms (the term cold-blooded is not used as frequently because their blood temperature can often be much higher than that of other animals). These animals include; insects, reptiles, amphibians and fish.
Yes, a perch is a cold blooded animals, as are all fish, as their body temperate rises and falls with their environment. This means that when the perch is in warm water, their body temperature rises to match it and when it moves to cold water, its body temperature lowers.
no it is a warm blooded animal. Mammals are warm blooded but reptiles like snake are cold blooded and also fish are cold blooded birds are warm blooded
The Utah Lake Sculpin is a cold blooded animal
Boned fish? yes, as all fish are.
Cartilage fish? Yes, as all fish are.
Reptiles, fish, and amphibians
All invertebrates are cold blooded; however, not all cold blooded animals are invertebrates. For example, reptiles, amphibians and most fish are cold blooded, but they are not invertebrates.
Reptiles, amphibians, and fish are all cold blooded animals.
Yes algae fish are cold blooded all fish are cold blooded.
Most fish are cold blooded, though there is evidence that some sharks may be warm blooded.cold blooded
Yes. All fish are cold-blooded.
Fish. Reptile.
No a wolf is not a cold blooded animal. Wolves are mammals and they are warm-blooded. A warm blooded animal Will have a body temperature that is higher than its surrounding environment. Warm blooded animals are mainly mammals and birds. The wolf would not be a cold blooded animal. Cold blooded animals have a body temperature which reflects the environmental temperature. Cold blooded animals are mainly invertebrates, Fish, reptiles and amphibians.