"It can now provide us with a better picture of the starting point for the changes between bipedal and
quadrupedal ceratopsians," adds Morschhauser.
The geological age of the new whale, its place of discovery, and its affinities with more fragmentarily known
quadrupedal whale remains from the west coast of Africa also support the hypothesis that amphibious whales crossed the South Atlantic to reach South America, before a northward dispersal along the east coast of the US, according to Lambert.
The BBB rating score is composed of 22 nonlinear operational definitions (0-21 scale) studying several aspects involved in the locomotion of
quadrupedal animals such as weight support, plantar stepping, and forelimb/hindlimb coordination.
It includes running, climbing, swinging, vaulting, jumping, rolling,
quadrupedal movement, and is said to have some aspects of a non-combative martial art.
StarlETH: A compliant
quadrupedal robot for fast, efficient, and versatile locomotion.15th International Conference on Climbing and Walking Robot-CLAWAR 2012.
They possessed some adaptations for aquatic life, but many remained
quadrupedal with the ability to locomote on land.
It is usually through running, jumping, climbing and
quadrupedal movement.
Beinersdorf et al., "An adaptive sensor foot for a bipedal and
quadrupedal robot," in Proceedings of the 4th IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics, pp.
This is embedded in the very history of dinosaur fossils, as in Gideon Mantell's historic discovery of the iguanodon, which switched between bipedal and
quadrupedal before being, ultimately, classified as both--a complicated history muddied further by early palaeontologists' tendency to throw ambiguous fossil discoveries under the 'iguanodon' banner.