What do Old World monkeys have?

What do Old World monkeys have?

Primates: Old World Monkey vs. New World Monkeys

Old World Monkeys	New World Monkeys
Nostrils are closer together; open downward or forward	Nostrils are farther apart; open to the side
Eat plants and some meat	Eat fruits, insects, and leaves
Opposable thumbs	No opposable thumb
No prehensile tail	Prehensile tail

What type of molars do Old World monkeys have?

The molars have a distinctive cusp pattern of four cusps joined in pairs by transverse ridges. The differences in the sizes of the skulls of male and female Old World Monkeys may be very pronounced with the skull of the male of a species being twice as heavy as the skull of the female.

How do Old World monkeys differ from New World monkeys?

Old World monkeys differ from New World monkeys in having downward-pointing nostrils (Figure 1) and only two pre-molars, while the presence of tails in nearly all forms differentiates them from apes.

Do all Old World monkeys have cheek pouches?

etc. The Old World monkeys are divided into two subfamilies. The Cercopithecinae have ischial callosities, cheek pouches, and are omnivorous….OLD WORLD. MONKEYS:

subfamily:	Cercopithecinae	Colobinae
species:	baboons guenons patas monkeys macaques	colobus langurs proboscis monkeys

Do Old World monkeys have prehensile tails?

Some New World monkey species have prehensile tails capable of supporting the entire body weight or of grasping, for example, a proffered peanut. No Old World monkeys have this ability, and macaques are nearly tailless.

Do Old World monkeys have Y-5 molars?

More specifically, the apes can be distinguished from Old World monkeys by the number of cusps on their molars: apes have five, the “Y-5” molar pattern, while Old World monkeys have only four in a “bilophodont” pattern.

How many molars do Old World monkeys have?

Old World monkeys (Catarrhini) live in Africa and Asia. Some are arboreal, some are terrestrial, and some are a little of both. Unlike New World monkeys, they don’t usually have long tails. In general, they have 32 total teeth; eight incisors, four canines, eight premolars, and 12 molars.

What is the difference between an Old World monkey and a New World monkey quizlet?

New World monkeys are the only monkeys with prehensile tails—in comparison with the shorter, non-grasping tails of the anthropoids of the Old World. Old World Monkeys tend to be larger in overall size. They have fingernails that are flat instead of sharp. They also have nostrils that are narrow and point downward.

Do Old World monkeys have diastema?

The old world monkeys have big, sharp canines with a diastema (gap between canines and incisors), and the upper canines are kept sharp by being honed against the first premolar on the bottom. Old world monkeys are larger on average than the new world monkeys.

Do Old World monkeys have tooth combs?

Apes have a tooth comb, but Old World monkeys do not. Old World monkeys have a diastema, whereas apes do not. Apes have a Y-5 pattern of cusps, whereas Old World monkeys have a bilophodont pattern.

Why do Old World monkeys have cheek pouches?

Baboons also hunt the young of large mammals like gazelle. The characteristic cercopithecine cheek pouches extend down both sides of the neck and are used for storing food. The pouches are very useful if the monkeys are disturbed by predators while looking for food on the ground.

How many teeth do Old World monkeys have?

32
Old World monkeys (Catarrhini) live in Africa and Asia. Some are arboreal, some are terrestrial, and some are a little of both. Unlike New World monkeys, they don’t usually have long tails. In general, they have 32 total teeth; eight incisors, four canines, eight premolars, and 12 molars.

Which of these monkeys is an Old World monkey quizlet?

This is a derived trait found among the Cercopithecinae Old World monkeys. The subfamily of Old World monkeys that includes the baboons, mangabeys, mandrills, guenons, patas monkeys, and macaques. These are all African species with the exception of the macaques which also live in Asia and Gibraltar.

Which characteristics is are seen in new monkeys and not in Old World monkeys?

New World monkeys have an additional premolar tooth in their mouths; they have three while Old World monkeys only have two (2). Old World monkeys have fingernails and toenails, while New World monkeys often have claws on all of their digits with the exception of the big toes of marmosets and tamarins (2,3).

How many premolars do Old World monkeys have?

two premolars
No living primate has four premolars; primitive primates, tarsiers, and New World monkeys have retained three on each side of each jaw, but in the apes and Old World monkeys, there are only two premolars.

How do New World monkeys differ from Old World monkeys quizlet?

Where are Old World monkeys found quizlet?

Old world monkeys, includes the subfamilies of colobinae and cercopithecinae. Found in Asia and Africa, have a heavy reliance on leaves in their diet and bilophodont molars. Found in Asia and Africa, have the largest of the monkeys including mandrills.

Do Old World monkeys have Bilophodont molars?