Loosely defined, in tripod at least three legs, in tetrapod at least four legs, and in wave gait at least five legs are on the ground at any time (for attempts of more quantitative definitions see Wosnitza et al. 2013; Grabowska et al. 2012).
"At least your legs are still nice".
For growing Psittacosaurus at least, four legs were good, but apparently two were better.
You've gotta have at least three legs to stand on, and she didn't have 'em.
They work for Steve's Bug-Off, an exterminating business in the building, and politely send you upstairs when you ask about the Insectarium, an eight-year-old, two-floor paean to creatures with at least six legs.
The mechanical architecture of parallel robots is based on parallel mechanisms in which a mobile platform is connected to a reference element by at least two legs.
For an ePaddle-based quadruped robot working in this mode, all the four ePaddle modules are always in contact with the ground during the locomotion which results the robot is supported by at least four legs at any time.
But if Microsoft had the price advantage cut from under them, the company says it still has at least two legs to stand on: platform integration and a large footprint in household living rooms.
Spiders, like most other arachnids, keep at least four legs on the surface while walking or running.
This was not the case in our study: although the median leg alignment was different, the knees that did not need ligament releases had a leg alignment in preoperative standing radiographs ranging from 11° valgus to 13° varus; the patients were therefore not those with the least deformed legs.
