And a praying mantis is a quadruped, because it walks on its 4 hind legs, but it has 6 limbs total so it is not a tetrapod! Understanding Quadruped Anatomy Examples include amphibians, reptiles, mammals, and birds.īut here’s where it starts to get weird: Not all quadrupeds are tetrapods, and not all tetrapods are quadrupeds! For example, a bird is a tetrapod because it has 4 limbs 2 legs and 2 wings, but it moves on land with it’s 2 back legs, making it a biped.It’s also important to make a distinction between Quadrupeds and Tetrapods. Examples include humans obviously, but also kangaroos, some specific dinosaurs, and birds - who are actually feathered, bipedal dinosaurs!.Biped - An organism whose terrestrial locomotion is accomplished with 2 rear limbs or legs.When we talk about “quadrupeds” or “bipeds”, we’re not talking about any specific zoological classification like a genus or a species we’re talking about the animals' means of locomotion. Let’s start by defining our terms a bit so we’re on the same page.
Now I obviously don’t have the time or space to address every creature on earth, but I thought it would be great to talk a little bit about what is probably the second most common type of character you might encounter besides the humanoid biped: the quadruped. But of course there are lots of other animals in the world that you might be called upon to bring to life. It’s the most common character you’re likely to encounter, as well as being the one you’re most familiar with-since you, well, are one. Most character animation curriculum, for good reason, begins with the humanoid biped.
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