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Definition of bipedal in English: bipedaladjective bʌɪˈpiːd(ə)l Zoology (of an animal) using only two legs for walking. 〔动〕（动物）用双足行走的 Example sentencesExamples - Our exobiologists expect any alien species we may encounter to be bipedal mammals that are approximately our size.
- Eventually, the behaviorists caved in and exempted the bipedal ape from their theory of everything.
- Earlier this month in northeast Ethiopia, the bones of the oldest bipedal hominid to date were discovered.
- Some will come as a surprise, like the early small-brained bipedal hominids.
- It was probably a bipedal animal, probably predatory, and probably the size of a large dog.
- Tyrannosaurs grew out of a group of lightweight, carnivorous, bipedal dinosaurs that also gave rise to birds.
- A cursorial bipedal animal would have its arms free to do with them as it pleased while running, and its running speed would allow it to achieve the minimum speed necessary for liftoff.
- It was a bipedal creature from what she could see but it resembled something close to a wild tiger in the upper torso.
- Strange to see aliens as the main theme of a carving; where you expect to see humans there are bipedal cats in their stead.
- He had always been fond of Jinx - in other circumstances, the bipedal tiger might have become a cosseted pet.
- We had to be less developed to pass through a smaller, bipedal apes cervix, and as a result developed longer and slower, but further than our ape cousins.
- Gizmo had become a large bipedal creature with gray fur all over its body.
- They acted more like huge flightless birds of prey, than the overgrown bipedal lizards of popular imagination.
- In their view, terrestrial, bipedal dinosaurs flapped their ‘arms’ first and later evolved into fliers.
- That would have laid the groundwork for the success of the archaic bipedal hominids.
- Theropods are the line of mainly carnivorous, bipedal dinosaurs from which birds evolved.
- It is clearly designed for an upright, bipedal creature.
- This group of hominids were definitely bipedal, had small canine teeth and, therefore, were early men.
- Thirdly, substantial differences are seen between the hip bones of quadrupedal and bipedal primates, involving also the locomotor and postural muscles attached to the hip bones.
- So it is important to know whether some fossil ape-like creature was bipedal or not.
Derivativesnoun Zoology An opposing camp argues that bipedalism is simply the most energy-efficient way for a hominid to get around on a flat surface. Example sentencesExamples - Well, it is clear that bipedalism arose quite early in hominid history, even if no one can be certain, in the strictest genealogical sense, that the earliest hominid was an upright biped.
- But bipedalism in birds is a highly specialized form of bipedal motion; the large tails of birds' ancestors, which in crocodilians still anchor the leg muscles, have mostly vanished in birds.
- One of the pleasures of Stanford's book is its splendidly gossipy account of recent research into the early history of hominid bipedalism.
- They concluded that movement by the protohominids into this novel dimension of behavior was importantly linked with the advent of bipedalism.
noun ˌbʌɪpiːˈdalɪti Zoology The hominid fossil record shows a very clear progression in all of the key human traits - brain size relative to body size, bipedality, dentition, the use of tools, and cultural sophistication - from the miocene primates to modern humans. Example sentencesExamples - They state that the australopithecine material has been poorly interpreted because of preconceived notions, and that australopithecine bipedality may have been quite different from and unrelated to human bipedality.
- The most eagerly sought after evidence in fossil ‘hominids’ is any anatomical feature that suggests bipedality (the ability to walk on two legs).
- Postural bipedalism, similar to that displayed by chimpanzees, could possibly have originated in arboreal or terrestrial feeding situations in wooded environments and was subsequently modified to locomotor bipedality.
- Unfortunately, determining whether bipedalism was the cause of increased velocity, or simply a behavioral by-product, is difficult, as bipedality increased with stride number.
- Thus, bipedality of terrestrial theropods and birds must be convergent, and all hindlimb, pelvis, and tail characters can be discounted.
OriginEarly 17th century: from Latin bipes, biped- (from bi- ‘having two’ + pes, ped- ‘foot’) + -al. Rhymesbeadle, credal, needle, wheedle Definition of bipedal in US English: bipedaladjective Zoology (of an animal) using only two legs for walking. 〔动〕（动物）用双足行走的 Example sentencesExamples - It was probably a bipedal animal, probably predatory, and probably the size of a large dog.
- In their view, terrestrial, bipedal dinosaurs flapped their ‘arms’ first and later evolved into fliers.
- This group of hominids were definitely bipedal, had small canine teeth and, therefore, were early men.
- Eventually, the behaviorists caved in and exempted the bipedal ape from their theory of everything.
- Some will come as a surprise, like the early small-brained bipedal hominids.
- Thirdly, substantial differences are seen between the hip bones of quadrupedal and bipedal primates, involving also the locomotor and postural muscles attached to the hip bones.
- A cursorial bipedal animal would have its arms free to do with them as it pleased while running, and its running speed would allow it to achieve the minimum speed necessary for liftoff.
- Theropods are the line of mainly carnivorous, bipedal dinosaurs from which birds evolved.
- It was a bipedal creature from what she could see but it resembled something close to a wild tiger in the upper torso.
- It is clearly designed for an upright, bipedal creature.
- We had to be less developed to pass through a smaller, bipedal apes cervix, and as a result developed longer and slower, but further than our ape cousins.
- Strange to see aliens as the main theme of a carving; where you expect to see humans there are bipedal cats in their stead.
- So it is important to know whether some fossil ape-like creature was bipedal or not.
- Our exobiologists expect any alien species we may encounter to be bipedal mammals that are approximately our size.
- Tyrannosaurs grew out of a group of lightweight, carnivorous, bipedal dinosaurs that also gave rise to birds.
- Earlier this month in northeast Ethiopia, the bones of the oldest bipedal hominid to date were discovered.
- Gizmo had become a large bipedal creature with gray fur all over its body.
- They acted more like huge flightless birds of prey, than the overgrown bipedal lizards of popular imagination.
- He had always been fond of Jinx - in other circumstances, the bipedal tiger might have become a cosseted pet.
- That would have laid the groundwork for the success of the archaic bipedal hominids.
OriginEarly 17th century: from Latin bipes, biped- (from bi- ‘having two’ + pes, ped- ‘foot’) + -al. |