Related Clues:

• Limbless reptiles
• Rattlers, asps, cobras etc
• Reptiles, some are venomous
• Reptiles, some venomous
• Constrictors, vipers
• Tropical tree lizards
• Sank some extra stout initially - enough to make them footless
• No feet in their system
• Come at the end of ladders and go with ladders on board
• Vegetarian rain forest dwellers
• Kraits and boas
• '___ on a Plane'
• "___ on a Plane"
• They're not, in fact, spineless about using AA
• They may bite; short solution comes up — get a bird