What are 6 types of reptiles?
The major groups of living reptiles—the turtles (order Testudines), tuatara (order Rhynchocephalia [Sphenodontida]), lizards and snakes (order Squamata), and crocodiles (order Crocodylia, or Crocodilia)—account for over 8,700 species.
What have reptiles on their body?
Reptiles are air-breathing vertebrates covered in special skin made up of scales, bony plates, or a combination of both. They include crocodiles, snakes, lizards, turtles, and tor- toises. Unlike birds and mammals, reptiles do not maintain a constant internal body temperature.
What skin type are reptiles?
Scaly Skin Is In! Reptiles have dry, scaly skin. But they don’t need moisturizer! Their special covering actually helps them hold in moisture and lets them live in dry places. Reptile scales are not separate, detachable structures — like fish scales.
What are some of reptiles physical characteristics?
Traits of Reptiles and Amphibians
- Reptiles are vertebrates. They have backbones.
- Their bodies are completely covered with scales.
- They are cold-blooded.
- Reptiles produce shelled eggs or bear live young.
- All species fertilize eggs internally.
- All species of reptiles have at least one lung.
What are the physical characteristics of a reptile?
They have backbones that house the spinal cords that run the length of their bodies. Reptiles also have chains of bony elements from the tail to the head. The bony endoskeleton consists of cranium or skull, appendages, and limb girdles. The endoskeleton protects the inner tissue and also aids in body movement.
How are reptiles different from other animal classes?
Reptiles Have Scales or Scutes One of the major distinguishing factors between reptiles and other animal classes is the presence of scutes or scales. The scales covering the body of reptiles are made of keratins and formed from the epidermis unlike fish scales which are formed from the dermis.
Why do reptiles not use their skin for respiration?
Due to this occlusive skin, reptiles cannot use their skin for respiration, as do amphibians; all breathe with lungs. Reptiles are ectotherms: animals whose main source of body heat comes from the environment. This is in contrast to endotherms, which use heat produced by metabolism to regulate body temperature.
Where does the body heat of a Reptiles come from?
Reptiles are ectotherms: animals whose main source of body heat comes from the environment. This is in contrast to endotherms, which use heat produced by metabolism to regulate body temperature. In addition to being ectothermic, reptiles are categorized as poikilotherms: animals whose body temperatures vary rather than remain stable.
What are the names of the different types of reptiles?
Iguanidae (Iguanas) – Includes many subspecies: anoles, collared lizards, etc. Pygopodidae (Legless lizards) Dibamidae (Blind lizards) Cordylidae (Spinytail lizards) Anguidae (Alligator lizards) Helodermatidae (Gila monsters) Varanidae (Monitor lizards) Amphisbaenidae (Worm lizards) Few animals inspire such mixed emotion as snakes.
Is the classification of a reptile ever changing?
Reptile classification is a complicated and ever-changing thing (see challenges below). As much as possible, we have tried to organize our website around the four reptile orders listed above. This website is a “living document” that will change as needed to reflect changes / reclassifications in the reptile world.
What are the characteristics of a reptile body?
Other features also define the class Reptilia. The occipital condyle (a protuberance where the skull attaches to the first vertebra) is single. The cervical vertebrae in reptiles have midventral keels, and the intercentrum of the second cervical vertebra fuses to the axis in adults. Taxa with well-developed limbs have two or more sacral vertebrae.
Why do all reptiles have the same body temperature?
Bear in mind that, although all reptiles have scales, this is not a unique reptile characteristic; butterflies, birds, pangolins, and fish have scales as well. The body temperature of cold-blooded animals is determined by the temperature of their environment.
