16.1 primate evolution

16.116.1 Primate Primate EvolutionEvolution

Try this:Try this:

Write your name without Write your name without using your thumbs!using your thumbs!

Primate EvolutionPrimate Evolution

1871 Darwin said there might be a 1871 Darwin said there might be a link between monkeys, apes and link between monkeys, apes and humanshumans

Today scientists study living Today scientists study living primates and fossils to learn about primates and fossils to learn about primate evolutionprimate evolution


A primate is a group of mammals A primate is a group of mammals that includes lemurs, monkeys, apes that includes lemurs, monkeys, apes and humansand humans

Vervet


Primate featuresPrimate features Opposable thumbs – allows primates to Opposable thumbs – allows primates to

grasp grasp Large brain volume, round head and flat Large brain volume, round head and flat

faceface Strong vision, binocular visionStrong vision, binocular vision Flexible arm movement – for moving in treesFlexible arm movement – for moving in trees Flexible joints – allow for wide range of Flexible joints – allow for wide range of

motionmotion Feet that can grasp objects Feet that can grasp objects


Primate featuresPrimate features Opposable thumbsOpposable thumbs Large brain volumeLarge brain volume Strong vision, binocular visionStrong vision, binocular vision Flexible arm movementFlexible arm movement Flexible jointsFlexible joints Feet that can grasp objects Feet that can grasp objects


Similarities tell us primates share Similarities tell us primates share evolutionary historyevolutionary history

Evidence = anatomy, geneticsEvidence = anatomy, genetics


ProsimiansProsimians lemurs, aye-ayes, tarsierslemurs, aye-ayes, tarsiers Small bodies, large eyes, nocturnalSmall bodies, large eyes, nocturnal Live in tropical forests and eat insects, Live in tropical forests and eat insects,

seeds, fruitseeds, fruit First fossils 50-55 million years old First fossils 50-55 million years old


AnthropoidsAnthropoids Monkeys, hominoids (apes and humans)Monkeys, hominoids (apes and humans) Larger bodies, more complex brains Larger bodies, more complex brains

than prosimiansthan prosimians


AnthropoidsAnthropoids Monkeys Monkeys

New World MonkeysNew World Monkeys Old World MonkeysOld World Monkeys



New World MonkeysNew World Monkeys South and Central AmericaSouth and Central America Arboreal – live in treesArboreal – live in trees Prehensile tail – can gripPrehensile tail – can grip Marmosets and spider monkeysMarmosets and spider monkeys



Old World MonkeysOld World Monkeys Africa to JapanAfrica to Japan Some live in trees, some on landSome live in trees, some on land Tail not prehensile, larger than NWM Tail not prehensile, larger than NWM Colobus monkeys and baboonsColobus monkeys and baboons




Hominoids Hominoids ApesApes HumansHumans




Hominoids Hominoids ApesApes

No tails, muscular arms for tree climbingNo tails, muscular arms for tree climbing Social groups, long term parental careSocial groups, long term parental care Gibbons, orangutans, chimpanzees, Gibbons, orangutans, chimpanzees,

gorillasgorillas HumansHumans




Hominoids Hominoids ApesApes HumansHumans

Walk uprightWalk upright Larger brainLarger brain


AnthropoidsAnthropoids Evolved worldwideEvolved worldwide

New World monkeys – 30 – 35 million years New World monkeys – 30 – 35 million years agoago

Old World Monkeys – 20 – 22 million years Old World Monkeys – 20 – 22 million years agoago

Hominoids - gibbons, then orangutans, Hominoids - gibbons, then orangutans, then chimps and gorillas, then then chimps and gorillas, then

humanshumans

16.1 primate evolution

Documents

years agoold world monkeys

primate evolutiontry

primate evolution1871

nwm colobus monkeys

years agohominoids gibbons

humanslarger bodies

tarsierssmall bodies

large eyes