The caterpillar chewed on, indifferent to its own anatomy. Would you like a diagram or a glossary version of the same "viz." list?
A student raised a hand. "Professor, which part is most important?"
"Note the six pairs of simple eyes, called stemmata . They don't see images—only light and shadow. And those tiny antennae? They taste the air. But the real marvel, viz. the mandibles —horizontal jaws that shred leaves like botanical scissors." caterpillar parts viz
"Three segments behind the head. Each bears a pair of jointed true legs , complete with a tiny claw. These are the caterpillar's only permanent appendages. Watch how it uses them to grip a stem—like a mountaineer on a cliff."
"And lastly, viz. the anal prolegs and the terminal opening. Waste exits as frass —those little dark pellets. Curiously, some caterpillars fire their frass meters away to hide their scent from predators." The caterpillar chewed on, indifferent to its own anatomy
"Now look here, viz. the prolegs —stubby, unjointed fleshy protrusions on segments three through six, plus the last segment. See the tiny hooks? Crochets . They act like Velcro, anchoring the animal to silk pads or rough bark. Without them, it would fall at the first breeze."
Professor Aris Thorne adjusted his magnifying loupe and peered at the wriggling creature on the leaf. "Class," he announced, tapping his clipboard, "today we dissect a living machine. The caterpillar. Its parts, viz.: "Professor, which part is most important
"Along the abdomen, viz. a row of tiny dots— spiracles . Air enters here, travels through tracheal tubes, and delivers oxygen directly to the tissues. No lungs. No blood circulation for gas exchange. Just plumbing."