What physical structure on the Wood Turtle carapace is typically a low, raised ridge running down the center?
Answer
The low central keel
The carapace of the Wood Turtle features a low central keel, which is described as a raised ridge running along the middle axis of the shell. This feature contributes to the overall robust architecture of the carapace. Furthermore, the vertebral scutes—the central scale plates of the shell—may sometimes display radiating yellow streaks, which might be visible along this central keel. This structural element, combined with the heavily sculptured annuli, defines the shell's profile and helps distinguish it from similar species.
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