bipedal

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Related to bipedality: Bipeds

bipedal

[bī′ped·əl]
(biology)
Having two feet.
References in periodicals archive ?
Identification as theropod tracks is based on their functionally tridactyl nature, with a distinct hallux (not actually seen in these specimens), and full bipedality. However, it is possible that some as yet unknown non-dinosaurian dinosauriforms had a similar foot structure that, based on tracks, might not be separable from that of theropods.
Two key paleontologic markers of this lineage are pelves compatible with bipedality and braincase size.
In clinical practice, we are familiar with the consequences of a trade-off between our supposed quadrupedal past and (relatively) recently acquired bipedality. A bipedal gait, while having advantages, has also resulted in uniquely human medical problems such as pressure on the lower spine manifesting as pain, difficulties and complications of childbirth, and a greater tendency to fainting and circulatory problems.
Acting synergistically, their power to transform humans may be unmatched by all but two former periods in human history--(1) the transition to bipedality and the beginning of brain expansion about five million years ago, and (2) the Axial Age, a period of spiritual enlightenment between about 800 and 200 B.C.E.
Bipedality also freed the hands of husbands for sculpture, dish-washing, pushing supermarket trolleys, signing cheques and gardening on Sundays.
Marzke MW, Longhill JM and Rasmussen SA (1988): Gluteus maximus muscle function and the origin of hominid bipedality. American Journal of Physical Anthropology 77, 519-528.
Kangaroo rats possess adaptations such as large auditory bullae tuned to low frequencies (Lay 1993), bipedality, and eyes located dorsolaterally, all of which enhance the animals' ability to escape predation (Thompson 1982).
Like walking, standing, running, skipping, skating, skiing, sliding, leaping, dancing, and jumping, falling is an aspect--sometimes anticipated, most times not--of human bipedality. Walking (and its variations) is as much a fundamental social activity as talking and listening, and must be understood and analyzed in this context.
Board 28 BONOBO (PAN PANISCUS) BIPEDALITY BY AGE AND SEX CLASSES IN RELATION TO HUMAN EVOLUTION.