HOMONOIDS HOMONOIDS Gibbons great apes orangutan gorilla and

HOMONOIDS

HOMONOIDS • Gibbons, great apes (orang-utan, gorilla, and chimps) and also humans.

HOMONOIDS • Gibbons, great apes (orang-utan, gorilla, and chimps) and also humans. • They differ from the Old world monkeys because of brachiation (swinging by the arms from branches).

HOMONOID DIFFERENCES • Powerful arms are longer than legs.

HOMONOID DIFFERENCES • Powerful arms are longer than legs. • Chest is flatter from front to back.

HOMONOID DIFFERENCES • Powerful arms are longer than legs. • Chest is flatter from front to back. • Absent tail.

HOMONOID DIFFERENCES • Powerful arms are longer than legs. • Chest is flatter from front to back. • Absent tail. • More mobile shoulder and forelimb. Supination (ability to rotate forearm) enables branches to be grasped from any direction.

HOMONOID DIFFERENCES • Powerful arms are longer than legs. • Chest is flatter from front to back. • Absent tail. • More mobile shoulder and forelimb. Supination (ability to rotate forearm) enables branches to be grasped from any direction. • Reduced thumb and not fully opposable. Objects are gripped between thumb and side of first finger.

HOMONOID DIFFERENCES • Powerful arms are longer than legs. • Chest is flatter from front to back. • Absent tail. • More mobile shoulder and forelimb. Supination (ability to rotate forearm) enables branches to be grasped from any direction. • Reduced thumb and not fully opposable. Objects are gripped between thumb and side of first finger. • Short lumbar region of the backbone.

HOMONOID DIFFERENCES • Powerful arms are longer than legs. • Chest is flatter from front to back. • Absent tail. • More mobile shoulder and forelimb. Supination (ability to rotate forearm) enables branches to be grasped from any direction. • Reduced thumb and not fully opposable. Objects are gripped between thumb and side of first finger. • Short lumbar region of the backbone. • Brain more developed than in monkeys.

KNUCKLE WALKING • African apes have special feature not shown by other apes or humans – the ability to walk on all fours.

KNUCKLE WALKING • African apes have special feature not shown by other apes or humans – the ability to walk on all fours. • The front of the body is supported by the knuckles and the third and fourth digits.

ACTIVITIES • Biozone – page 189 & 190