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What else can I help you with?
Are birds reptiles or mammals?
Birds are neither reptiles nor mammals. They are a separate class of vertebrate animals called Aves. Birds share characteristics with both reptiles and mammals, but they have distinct features that set them apart, such as feathers, beaks, and laying eggs.
Feathers are thought to have arisen from what structure?
reptile scales
Are there mammals with no hair?
No, all mammals have some form of hair or fur on their bodies at some point in their development. Hair is a defining characteristic of mammals and plays important roles in insulation, protection, and sensation.
Do non mammal vertebrates have hair?
Mammals are the only animals that have true hair. This feature is what sets them apart from other animals.
Are dogs reptiles?
Actually, dinosaurs are bird-like animals, with a similar anatomy and lifestyle. They used to be classified as reptiles, or lizards, but now we have all the evidence in the world to say that "no, dinosaurs are more birdlike". Yet, this is still a widely debated subject.
Did velociraptors REALLY have feathers?
No, sorry g, but they did not. Velociraptors are reptiles and reptiles do not have feathers. Come on you guys!
Which adaptation is not characteristic or reptiles?
Gills
How many species of snakes lay eggs?
Snakes are reptiles, and all reptiles lay eggs. That is a basic characteristic of reptiles.
What was the evolutionary advantage of the modification of scales on reptiles to feathers on ancestral birds?
The feathers helped retain body heat.
What do all reptiles share?
One characteristic all reptiles share is that they are all cold-blooded.
Why is penguin not a reptile?
Because it's a bird ! Birds have feathers - reptiles have scales !
What animals is NOT characteristic of the Cenozoic period?
Large, active reptiles, such as non-avian dinosaurs, went extinct before the start of the Cenozoic. Hence, dinosaurs, pterosaurs, and other such reptiles are not characteristic of the Cenozoic.
What are some characteristic for reptiles?
Scales, fork tongue, and cold blooded
What are a bird's legs covered with?
A bird's legs are covered in the same soft scales as a reptile's skin, so it has the same texture as snake skin. This is because birds are very closely related to reptiles. A bird's feathers are made of the same material.
What characteristic do reptiles and mammals have in common?
Generally, mammals and reptiles are both vertebrates, meaning they have a backbone and endoskeleton. Reptiles and mammals also have their brains located inside a cranium and have two eyes.
What adaptations enable birds to live in environments that are colder than those typically supporting reptiles?
Unlike reptiles, birds are endothermic. They also have feathers, which conserve heat.
What group of vertebrates is the only one with feathers?
While the birds are the only currently living animals (specifically vertebrates) with feathers, the fossil record clearly shows that some species of the reptiles (specifically the dinosaurs) had feathers (and these are the ancestors of the birds).
