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What did the position of the forearm magnum indicate to Dart?
The position of the forearm magnum on the skull of Australopithecus africanus indicated to Raymond Dart that the spinal cord entered the skull from below, similar to humans, suggesting they walked upright. This helped provide evidence for the theory that Australopithecus was a bipedal hominin.
How does the position of the foramen magnum in the skull relate to the evolution of bipedalism in humans?
The position of the foramen magnum in the skull, which is where the spinal cord connects to the brain, shifted forward in human evolution. This forward shift allowed for a more balanced upright posture, which is a key adaptation for bipedalism, or walking on two legs. This change in the foramen magnum position is considered a significant factor in the evolution of bipedalism in humans.
What aspect of the vertebral column allows humans to be bipedal?
The S-shaped curvature of the vertebral column in humans allows for an upright posture, which is essential for bipedalism. The lumbar region of the vertebral column plays a key role in supporting the weight of the upper body and maintaining balance while walking upright.
Why do the pelvis bones of the human and chicken appear wider than that of the cat?
The pelvis bones of humans and chickens are wider to accommodate bipedal walking in humans and upright posture in chickens. In contrast, cats are quadrupedal animals with a more streamlined body to support greater mobility and agility in running and climbing. The difference in pelvic shape reflects the different lifestyles and movement patterns of these animals.
Why is the serratus anterior in humans called the serratus ventralis in cats?
The serratus anterior muscle in humans and the serratus ventralis muscle in cats are functionally equivalent but have different names due to anatomical differences and the naming conventions in comparative anatomy. The term "serratus" refers to the serrated or saw-like appearance of the muscle, while "anterior" and "ventralis" indicate their positions in the respective species.
How does the position of the kidneys in a cat differ from their position in human?
Kidneys in cats are usually lower than in humans because humans are taller and walk upright.
Are humans bipedal?
Humans are bipedal because we walk upright on two legs.
How humans are bipedal?
Humans are bipedal because we walk upright on two legs.
Primates could not walk upright without?
A tail. Humans can walk upright without it because of the way our spines are curved.
Why did humans first walk upright?
because they were curious about their environment and wanted to see more
What walks upright?
Humans do for a start.
Do both lemurs and humans have the same traits of larger brains?
no because the lumur are forwardvision and opposable thumbs.And humans they are walking upright and verbal language
Which of the hominids had the largest brain and an upright posture?
upright posture...large brains
What are animals that can stand upright called?
humans and other creatures that walk upright are called
What did the position of the forearm magnum indicate to Dart?
The position of the forearm magnum on the skull of Australopithecus africanus indicated to Raymond Dart that the spinal cord entered the skull from below, similar to humans, suggesting they walked upright. This helped provide evidence for the theory that Australopithecus was a bipedal hominin.
How are yahoos like humans?
Their walk upright not like a gorilla.
Humans and other humanlike creatures that walk upright?
Hominids
