Question, "Are there anthros for every type of animal?" Answer, "Many, but not all. All animals for which there are anthros seem to share certain traits." A diagram of an anthro canine displays its brain, spinal column, and lungs. "For example, all of them are vertebrates, have a central nervous system, and breathe air through lungs. Hence, there are no anthro fish or insects, for example. At least, none that have been discovered yet… Also, no anthros exist for many extinct species (most notably dinosaurs), though fossil evidence suggests some lived anciently." We see drawings of an anthro dinosaur skeleton (like a raptor) holding a spear, an anthro butterfly with six limbs and proboscis, and an anthro seahorse with webbed hands and a curled tail in place of legs. "All these have captured imaginations, however, and can be found in various works of fiction and popular culture.