are mammals and reptiles related?
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Mammals evolved from a group of reptiles called the synapsids. These reptiles arose during the Pennsylvanian Period (310 to 275 million years ago).
1279838
Birds, Reptiles, Fish are the non-mammals. Animals which have backbones are called vertebrates.
852074
They're both mammals, but giraffes are closer related to okapi, then other even toed ungulates like cows and deer. ... Thus giraffes are more closely related to pigs than to horses, albeit very distantly. The closest relatives to horses are zebras and asses (donkeys). All three are part of the Equidae family.
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Bats are mammals, but they are not rodents. In fact, they are more closely related to humans than to rats and mice.
1063688
Snakes, lizards, turtles, crocodilians, and birds are reptiles. Like all vertebrates, reptiles have bony skeletons that support their bodies. ... So, why are birds considered reptiles? Birds look very different from other reptiles, they have feathers, fly, sing complex songs, and have many other unique features.
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We'll start with the "reptilian" similarities of birds. Like all other reptiles, birds have scales (feathers are produced by tissues similar to those that produce scales, and birds have scales on their feet). Also, birds lay eggs like other reptiles.
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In the same way, birds and mammals are technically reptiles, as they descended from the very first reptile. ... Modern birds are believed to be evolved from these bird-like dinosaurs. Their closest relatives are crocodiles and alligators.
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Vertebrates. Animals can be classified as either vertebrates or invertebrates. Vertebrates are animals that have a backbone inside their body. The major groups include fish, amphibians, reptiles, birds and mammals.
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['Vertebrates: both birds and mammals are vertebrates, which means that they have backbones.', 'Endothermic (warm-blooded): both birds and mammals are endothermic (warm-blooded). ... ', 'Four-chambered hearts: the hearts of both birds and mammals have four-chambers.']
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Dugongs are related to manatees and are similar in appearance and behavior— though the dugong's tail is fluked like a whale's. Both are related to the elephant, although the giant land animal is not at all similar in appearance or behavior.
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Reptile. Specifically, T. rex was a diapsid reptile in the archosaur family. It's closest living relatives are the birds and the crocodilians.
564919
Actually, we are equally related to both. Cats and dogs both belong to the Order Carnivora - a group that includes all felids, canids, bears, weasels, and more. We, on the other hand, are part of the Order Primates. Think about your cousins.
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Almost all reptiles, amphibians, and fish come from eggs. But, while most mammals have a live birth, there are two mammals that do lay eggs instead. Animals and their eggs are incredibly diverse.
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Nor are they related to dinosaurs. ... Mammals and dinosaurs branched off from a common ancestor hundreds of millions of years ago. They may both have horns, but triceratops and rhinos are very different. Usually you wouldn't refer to them as “related.”
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Pterosaurs are nonetheless more closely related to birds and other dinosaurs than to crocodiles or any other living reptile, though they are not bird ancestors. Pterosaurs are also colloquially referred to as pterodactyls, particularly in fiction and by journalists.
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Well, perhaps, it is best to show you some examples of reptiles and amphibians before we discuss what they are. Reptiles: Snakes, lizards, turtles, tortoises, crocodiles, and alligators are all reptiles. Amphibians: Frogs, toads, salamanders, and caecilians are all amphibians.
368859
Whereas birds have feathers, lack teeth and lay eggs, mammals have fur or hair for insulation, possess teeth and give birth to live young. Although birds are more closely related to reptiles than mammals, birds and mammals have several characteristics in common.