Haplorrhini: Simiiformes: Catarrhini: Colobinae

Question 1

Catarrhini: Cercopithecidae: Subfamily Colobinae; Leaf eating monkeys traits

Answer 1

wide-ranging group in Africa/Asia; Colobinae emphasize leaf eating and understood in terms of adaptions to exploiting leaves efficiently -leaves abundant in environ. but indigestible by mammalian enzymes= sacculated stomach

Question 2

Catarrhini: Cercopithecidae: Subfamily Colobinae; African Colobus Monkeys: Black & White Colobus

Answer 2

arboreal; one male/multifemale group; babies snow white curly hair like lamb when born-change color as grow; nonfunctional thumb-button left; population dropped alarmingly by hunting for monkey fur coats mid-19th century-1940s

Question 3

Catarrhini: Cercopithecidae: Subfamily Colobinae; Red Colobus Monkey: Red Colobus Monkey

Answer 3

multimale/multifemale groups; actively hunted by chimps; monkey self-medication (charcoal) behavioral adaption to cope with eating poisonous leaves

Question 4

Catarrhini: Cercopithecidae: Subfamily Colobinae; Asian Colobines

Answer 4

diverse group-44 species; dispersed from W Africa; inhabit variety of habitats - sub-tropical forests, swamps, & mountains (cold environs.)

Question 5

Catarrhini: Cercopithecidae: Subfamily Colobinae; India: Semnopithecus Gray Langur

Answer 5

native to India considered sacred in Hindu religion (Hanuman); lrg species ~size of german shepard; one male/one female And multimale bachelor groups-males fight; adapted to living w/humans

Question 6

Catarrhini: Cercopithecidae: Subfamily Colobinae; Asian Colobines: Nasalis larvatus : Proboscis monkey

Answer 6

Borneo-especially mangrove forests; big nose- sexually dimorphic in size/size of nose; one male/multfemale soc. org.; big belly trying to digest leaves; webbed feet to swim/walk upright for x-ing shallow water

Question 7

Catarrhini: Cercopithecidae: Subfamily Colobinae; Asian Colobines: Rhinopithecus roxellana : Golden snub-nosed monkey

Answer 7

only recently studied by Chinese scientists; temperate habitats; almost no nose outside body; eat bark when food scarce/turn over rocks by river eat lichen; thicker fur colder months; sexually dimorphic-males 30kg (85lbs)/females 10kg(22lbs); one male/multifemale groups

Question 8

Summary comparison of Subfamilies: Cercopithecinae to Colobinae:

Answer 8

Cercopithecinae: cheek pouches/ishcial callosities; sexual swelling in some species; terrestrial forms show dramatic sexual dimorphism; many lrg terrestrial forms
Colobinae: sacculated (“cow-like”) stomach; primarily arboreal
Both: sexual selection = unusual male traits

Question 9

Catarrhini Monkeys

Answer 9

arboreal/terrestrial; most are lrg monkeys; many have sexual dimorphism; colobines have special adaptations to folivory