Birds and mammals are two classes of vertebrates that are said to be warm blooded. They possess various mechanisms to ensure that their body temperature is fairly constant, (unaffected by, and usually warmer than, their surroundings), so that they can function more efficiently and reliably.

1 Answer. Warm-blooded animals with hair or fur are called mammals.

Mammals

Even though they live in the ocean all of the time, dolphins are mammals, not fish. Like every mammal, dolphins are warm blooded.

Yes, Amphibians are cold-blooded. The difference between cold-blooded and warm-blooded animals lies in how species control their core body temperature. Cold-blooded animals (known as ectotherms) are at the mercy of their environment.

Almost all fish are cold-blooded (ectothermic). However, tuna and mackerel sharks are warm-blooded: they can regulate their body temperature. Warm-blooded fish possess organs near their muscles called retia mirabilia that consist of a series of minute parallel veins and arteries that supply and drain the muscles.

Warm-blooded is an informal term referring to animal species which can maintain a body temperature higher than their environment.

It’s one of the most basic biology facts we’re taught in school growing up: Birds and mammals are warm-blooded, while reptiles, amphibians and fish are cold-blooded.

Homeotherms will only survive if the internal temperature of the body is within a small range. Examples: Amphibians, mammals and birds. Poikilotherms are the one that can survive if the internal temperature of the body is in a wide range. Examples: Reptilia and fishes.

A poikilotherm (/ˈpɔɪkələˌθɜːrm, pɔɪˈkɪləˌθɜːrm/) is an animal whose internal temperature varies considerably. Poikilothermic animals include types of vertebrate animals, specifically some fish, amphibians, and reptiles, as well as many invertebrate animals.

Homeothermic animals are warm-blooded and maintain a constant body temperature – example birds and mammals. Rabbit is a mammal. Toad and Frog are amphibians while lizard is a reptile.

Crocodile has 4-chambered heart ,but it is still not homeothermic.

All crocodilians are ectothermic, or poikilothermic, which essentially means that they do not generate significant body heat of their own through metabolism, but rather soak heat up from the sun.

We all know that crocodiles and other extant reptiles are ectotherms, warming their bodies by basking in the sun, then cooling off in the water. A group led by Roger Seymour of the University of Adelaide, Australia, postulates that the crocodile is descended from endotherms, animals that produce heat internally.

A mouse is an endotherm; it generates metabolic heat to maintain internal body temperature.

Humans are endothermic organisms. This means that in contrast to the ectothermic (poikilothermic) animals such as fishes and reptiles, humans are less dependent on the external environmental temperature [6,7].

Carrying capacity. Most of Earth’s fauna are ectothermic, and ectothermy allows for bigger population sizes, because an organism of a given mass can be supported with less energy per unit time. If humans were ectothermic, they would have lower per-capita resource requirements, at least in the domain of food.

Turtles, like other reptiles, are ectotherms, meaning that they maintain and alter their body temperature by acquiring heat from the environment.

Unlike their reptilian relatives, leatherbacks are able to maintain warm body temperatures in cold water by using a unique set of adaptations that allows them to both generate and retain body heat. These adaptations include large body size, changes in swimming activity and blood flow, and a thick layer of fat.

Today’s turtles don’t have teeth; they cut off their food using hard ridges on their jaws.

Turtles, long thought to be deaf and mute, actually make vocalizations about everything from hatching to migration.

Turtles don’t have ears, but they’re not deaf. Thin flaps of skin cover internal ear bones, which receive vibrations and low-frequency sounds.

Turtles do possess very powerful learning and long-term memory if it relates to their own survival. Turtles short-term memory is, like other animals, quite limited. It’s up for debate as to how long turtles can continue to recognize their owners after a separation.

Yes, it can! Tortoises and turtles show affection in different ways than a human or dog would. Tortoises and turtles are very intelligent, so it is not hard to believe that they can form bonds and love their owners. As always, pay attention to the signs your tortoise or turtle gives you.

Turtles cry a lot …but not because they’re upset. Instead, turtles have glands that help them remove excess salt from their eyes. It might look like a turtle is crying, but really it’s just taking care of itself!