“Correct. But look deeper. Look at the legs themselves. What are they made of?”
The name "arthropod" literally translates to "jointed foot" (from the Greek words arthron, meaning joint, and pous, meaning foot). Beetles have six legs, all of which feature distinct joints that allow for a wide range of movement, from scurrying across forest floors to gripping onto branches. 4. Bilateral Symmetry is a beetle an arthropod
“First,” Grandfather said, “watch it move. Count the legs.” “Correct
Humans have a skeleton on the inside (endoskeleton), but arthropods wear theirs on the outside. Beetles are famous for this. They possess a hard, protective external shell made primarily of a tough material called chitin . What are they made of
“Now look at the beetle’s back. That shell—we call it the elytron—isn’t just for show. What does it remind you of?”