Author: iamdefinitory

Laetoli Footprints – A set of fossilized footprints in Tanzania that provide early evidence of bipedal locomotion.

Postural Feeding Hypothesis – The idea that bipedalism initially evolved for reaching and collecting food in trees.

Provisioning Hypothesis – A theory that bipedalism helped males gather and provide food for their mates and offspring.

Carrying Hypothesis – The theory that bipedalism evolved to allow early humans to carry tools, food, or infants.

Thermoregulatory Hypothesis – The idea that bipedalism helped early hominins regulate body temperature by reducing sun exposure.

Savanna Hypothesis – A theory that suggests bipedalism evolved as early hominins moved into open grassland environments.

Energy Efficiency Hypothesis – The theory that bipedalism evolved to reduce energy expenditure in long-distance travel.

Stride Length – The distance covered in one step, which increased in early hominins to improve walking efficiency.

Opposable Toe – A feature of primates used for grasping; early hominins lost this trait as they became fully bipedal.

Arched Foot – A foot structure in humans that helps absorb shock and provides propulsion in bipedal walking.