| Using the retractile method has had the unanticipated benefit of allowing school classes to stand on the bridge and ride it as it slides open. |
| Like scaphopods, bivalves have a retractile foot which they use to burrow. |
| Spores may be demonstrated by phase-contrast microscopy of wet mounts, where they appear mature and retractile. |
| This risk especially concerns patients with a poor quality of skin, but retractile fibroses are always possible. |
| Genets are elongate short-legged animals with long tapering tails, pointed noses, large rounded ears, and retractile claws. |
| The feeding zooids use retractile tentacles, called the lophophore, to filter feed and have a U-shaped gut for digestion. |
