Human skeletal changes due to bipedalism

High school (ages 12+)
Human Body

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/human-skeletal-changes-due-to-bipedalism

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the primary skeletal regions affected?Foot, pelvis, femur, vertebral column
2. What is the functional benefits?Enhanced foraging, tool use, thermoregulation, predator detection, energy efficiency
3. What changes happened to our feet to help us walk on two legs?Our feet turned from grasping tools into stable platforms. They developed an arch that absorbs shock and a big toe that no longer points forward, making push‑off easier.
4. Why did our pelvis become shorter and wider?A shorter, broader pelvis supports our belly organs and gives muscles that help lift and stabilize the hips during walking.

Morphological Alterations: Changes in the shape and structure of body parts.
Arboreal Locomotion: Movement through trees, often involving grasping and climbing.
Terrestrial Locomotion: Movement on the ground.
Selective Pressures: Environmental factors that favor certain traits for survival and reproduction.