Which morphology describes sow bugs regarding their tail appendages (uropods)?
Answer
They possess well-developed uropods
Sow bugs, which are typically dorsoventrally flattened and unable to roll into a tight ball like pill bugs, retain several more ancestral characteristics. A defining feature noted for sow bugs is that they possess well-developed uropods, which are tail appendages that play a role in movement and balance. In contrast, the pill bugs, which evolved the specialized spherical defensive posture, exhibit reduced or modified uropods because the rolling mechanism overrides the need for those appendages to function in the same way as in the flatter sow bugs.
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