SEARCH Articles Figures Tables African clawed frog CLAW hypothesis Cat’s claw Claw Vacuum Pumps (Northey Principle) Claw pump Claw-Hand Claw-hand deformity Clawed lobster Clawed toad Constructions from Claw-Intractable Pairs of Permutations Devil’s claw Devil’s claw, Harpagophytum Function families Cases of factoring and claw-intractable permutation pairs How collisions can be used to find claws Knives, Ozark Bear Claws SUBJECTS claws South African clawed frog Strong claw-intractable family of permutation Strong claw-intractable family of permutation pairs Vacuum claw-type Weak claw-intractable family of permutation Weak claw-intractable family of permutation pairs