cranial capactity

Question 1

what are the gorilla skull features?

Answer 1

• large sagittal crest
• low, small cranial vault
• brow ridge
• heavy cheek bone
• diasteme (gap)
• protruding muzzle
• large incisors
• large canines used as defensive weapons
• large molars for griding vegetations
• massive jaw with no chin
• foramen magnum positions at rear

Question 2

in comparision to apes, decribe the cranial capactiy of humans

Answer 2

• increased overall volume
• increased brain size to body weight
• greater number of convolutions of the cerebreal cortex
• increased size of the frontal lobe = thinking, processing and learning