bipedality


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Related to bipedality: Bipeds

bipedality

The ability to walk on 2 feet, which is regarded as a defining characteristic of early homonids.
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References in periodicals archive ?
torquatus during bipedality and other lizards such as Basiliscus, Anolis, Varanus, Uranoscodon, Dipsosaurus and Callisaurus (see Barbour, 1943; Snyder, 1967; Howland et al., 1990; Irschick and Jayne, 1999; Hsieh, 2003) it is clear that each one of these lizards uses different strategies during their bipedal running.
Although we were not able to elucidate questions regarding the origin of bipedality in lizards, this study substantially contributes to the field of biomechanics by establishing for the first time a parallel between bipedalism of the Central American, European and North American species and those from Brazil.
In addition, one species, Oligoryzomys longicaudatus, with longer hind legs in proportion to its body size than other Chilean rodents, has a certain degree of bipedality (Mann 1978).
If bipedality confers lower vulnerability to predation, predation risk should affect quadrupedal species more than bipedal species for a given body size.
As has been found for rodents from other regions, bipedality may enable animals to experience less risk from predators because it permits quicker escape velocities (accelerations), allows more erratic trajectories with sudden changes in direction, and/or allows greater endurance while running (Djawdan and Garland 1988, Djawdan 1993, Vasquez 1994b).
Therefore, the overall patterns for bipedality seem to be similar (as far as patch utilization is concerned), but different patterns exist for body size.
Let's consider bipedality, then, to see what makes human bipedality different from other types.
With the two legs centered, bipedality is a mechanically easy thing to maintain.
What we call natural selection would thus drive the pre-hominids toward bipedality and a true hominid character.
To the instructor only--Examples include: bipedality, opposable thumbs, abstract thought, art, music and literature, complex brains, long childhoods, committing suicide, and possessing complex interconnections in our brains.