Challenging puzzle for experienced crossword solvers
Armored Adaptations in Nature
Moderate difficulty suitable for most players
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Across
- 1. Hard protective shell found on turtles and crabs
- 4. Horseshoe crab genus famed for its hard exoskeleton
- 5. Repeating section that makes up many exoskeleton structures
- 7. Wearable external framework enhancing human strength
- 9. Hardened forewings that protect beetle wings underneath
Down
- 2. Jaw part of many arthropods used for biting
- 3. Element often used in man-made lightweight exoskeleton materials
- 6. Hardened plate that forms part of an insect’s outer shell
- 8. Common short form of the external skeleton in arthropods
- 10. A strong polysaccharide forming many insect shells
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