Human Ev Exam 2 - Clavicle Fibula o Human Ev- Exam 2 (See...

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Clavicle Fibula Ulna Radius Tibia Scapula Femur Humerus o Human Ev- Exam 2 (See Primate Table for Exam 2) o Introduction to Living Primates o General characteristics of primates (about 270 species) Typically arboreal Relatively big brains For their body size and complex behaviors that reflect it Forward facing eyes—binocular vision Primates and carnivores and have independently developed forward facing eyes (judge distance better) All primates have either Post-orbital bar or enclosure: eye orbits/skull shape where the eyes sit Haplorhine primate- post-orbital closure (cups) Strepsirhine primate-post-orbital bar (rim of cup no bottom) Dogs have nothing around the eyeball so as dogs chew, their eyes move around All primates are social –group living Nails instead of claws Grasping hands and feet o Territorial primate species : a primate will actually fight to keep other species out of their home land Gibbons is an example of this o Primates still have a area they call home, but areas might overlap Economics to this- you gain something by putting the effort to keep others out Resources are finite & easily defendable Eating leaves lends itself to a less territorial strategy o Phylogeny of primates—focus on cladistics tree (focus on real, best ideas of evolutionary relationships) One big split to divide up all primates- strepsirhine primates-wet noses more sensitive to smelling (primitive condition) (lemurs& lorises) & haplorhines-dry noses more visually orientated (tarsiers ceboids (new world monkey), cercopithecoids(old word monkey), hominoids) o o o o
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o o o o o o o Dental Formula-look at one side of jaw (symmetrical) count # of Incisors: Canines: Premolars: Molars Humans have 2 incisors, 1 canine, 2 premolars, 3 molars 2:1:2:3/2:1:2:3 Not environmentally determined Tooth shape is complex trait o Strepsirhines, Tarsiers, and New World Monkeys (NWM) o Both lorises and lemurs have a “toilet claw”/grooming claw on second toe & tooth/dental comb on lower jaw (made from four incisors and canines pushed together) 2-1-3-3/2-1-3-3 o Strepsirhines have post-orbital bar o LEMURS o Madagascar Only o Small bodied are nocturnal BUT large bodied are diurnal o Social Large bodied tend to be female dominant, live in group (ring-tailed) cat sized o Sifaka - vertical clinging and leaping-long hind legs to propel themselves between trees (Intermembral Index would be low) o Diet: fruits and leaves o Aye Aye – Dental Combo 1:0:1:3/1:0:0:3, eats insects, solitary o Have tapetum layer in eyes so they can see at night o Lorises o Found in Africa(Pottos/Galagos- aka bushbaby) and SE Asia (lorises) (Rainforest living) o ALL Nocturnal, ALL Solitary or in pairs, ALL small bodied o Tend to eat insects because they are so small they have high metabolism (metabolism inversely related to body size) o Chameleon style of moving through branches for lorises while bushbaby/Galagos have more explosive styles of locomotion
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Human Ev Exam 2 - Clavicle Fibula o Human Ev- Exam 2 (See...

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