Anthro lecture 5

How is life Organized?

Domain, kingdom, Phylum, Class, Order, Family, Genus, Species.

Name the types of Locomotion

Arboreal

• Long tails (for balance)

• Slightly longer legs than arms

• Grasping foot

Terrestrial

• Short tails

• Relatively equal leg and arm lengths

• Shoulder

Vertical clinging n leaping

• Very long legs and feet

• Short neck

Suspensory or Branchiating

• Long arms

• long curved Phalanges

• Mobile shoulder joints

• often No tail

Knuckle working

• Long arms

• Curved hands

• Robust phalanges

Bipedalism

• Long legs

• Short and broad pelvis

• Curved Spine

• Short toes

What is the Arboreal Hypothesis?

Adaptation to life in trees. ( running from predators)

Visual Predation Hypothesis?

developed to catch small prey like insects

What is the Angiosperm Hypothesis?

co-evolved with flower leaves and fruit

What is Strepsirhine?

Order: Primate

Sub order Strepsirhine (Small bodied)

Strepsirhine Characteristics

Found only in Africa and Asia

•Nocturnal (mostly, with the exception of some lemurs) •Wet nose (rhinarium)

• Bicornuate (2 chamber) uterus

• Use scent marking for communication

• Tapetum (layer of cells that cause “eye shine”)

• Large eyes • Independently mobile ears

• Immobile upper lip • Inexpressive face

• 2.1.3.3 dental formula = 36 teeth (2 incisors, 1 canine, 3 premolars, 3 molars in each quarter of mouth)

Haplorhine Characteristics

• Larger body size

• Larger brain

• More colour vision

• Less reliance on the sense of smell (Rhinarium)

• More likely to live in groups

• More care from their parents

• MORE EXPRESSIVE FACE

• Longer to reach maturity