Heelwalker

The gladiator heelwalker (Tyrannophasma gladiator) is a ferocious nocturnal predator. It uses both front and middle legs to grab and crush its spider and insect prey.

Heelwalkers possess a highly modified tarsal attachment system. All extant species lift the distalmost tarsomere permanently off the substrate and primarily use their euplantulae for locomotion.