Which of the following explanations for the dispersal of African monkeys into the new world is supported by scientific evidence?
Which explanation for the dispersal of African monkeys to the New World is supported by the evidence? Platyrrhines evolved from anthropoids in Africa that migrated to South America across the Atlantic, or via Antarctica.
Which of following are considered major hypotheses concerning the origin of primates?
1: Three major hypotheses are A) the arboreal hypothesis, B) the visual predation hypothesis, and C) the angiosperm-primate coevolution hypothesis.
What is the arboreal hypothesis of primate origins?
The arboreal theory claims that primates evolved from their ancestors by adapting to arboreal life. It was proposed by Grafton Elliot Smith (1912), a neuroanatomist who was chiefly concerned with the emergence of the primate brain.
Which hypothesis for why primates have the characteristics they do argues that it is because their traits help them in dispersing the seeds fruit from flowering plants?
The arboreal hypothesis proposes that defining primate characteristics were adaptations to life in the trees, such as: grasping hands and feet, developed vision, and greater intelligence. The visual predation hypothesis proposes that: primate traits arose as adaptations to preying on insects and small animals.
What is the most likely hypothesis for the arrival of New World monkeys in South America from where did they come?
Our estimate for the origin of New World monkeys is in agreement with the hypothesis of a transatlantic journey from Africa to South America, as suggested by the fossil record.
Which is the best explanation for the origin of the New World monkeys?
New World monkeys descend from African simians that colonized South America, a line that split off about 40 million years ago.
What are the three competing hypotheses for the origin of primate characteristics?
Competing Hypotheses for the Origin of Anthropoids Three different hypotheses have been articulated in the literature. These are the adapoid origin hypothesis, the omomyoid origin hypothesis, and the tarsier origin hypothesis (Figure 8.11). Figure 8.11 Competing trees for anthropoid origins.
What is the most likely explanation for how New World monkeys got to South America?
More Than 30 Million Years Ago, Monkeys Rafted Across the Atlantic to South America. In a strange twist of evolutionary history, the ancestors of modern South American monkeys such as the capuchin and woolly monkeys first came to the New World by floating across the Atlantic Ocean on mats of vegetation and earth.
What is the arboreal hypothesis quizlet?
Arboreal Hypothesis. –primate traits – adaptions to life in the trees. -grasping hands/feet – holding onto branches.
What have researchers concluded about the fossil origins of African great apes?
But the researchers said their findings added to evidence that Africa was the place of origin of both humans and modern African apes and indicated that gorillas split off from a common ancestor with humans and chimpanzees long before the generally accepted time of 7 to 8 million years ago.
How did the New World monkeys get to the New World?
More Than 30 Million Years Ago, Monkeys Rafted Across the Atlantic to South America. In a strange twist of evolutionary history, the ancestors of modern South American monkeys such as the capuchin and woolly monkeys first came to the New World by floating across the Atlantic Ocean on mats of vegetation and earth.
Which of the following hypotheses links the evolution of primate traits to living in the trees?
Arboreal hypothesis: Primates' defining characteristics were adaptations to life in the trees. Angiosperm radiation hypothesis: The grasping hands, grasping feet, and visual acuity of primates were mostly adaptations for eating fruit and other foods made available by modern groups of flowering plants.
What does the angiosperm radiation hypothesis propose?
The angiosperm radiation hypothesis proposes that: certain primate traits were responses to the acquisition of fruit during the Cenozoic. Basal anthropoids are: Eocene primates that are the earliest anthropoids.
What have researchers concluded about the origins of African great apes quizlet?
The scientist Charles Darwin concluded that because of the remarkable anatomical similarity between humans and various species of African apes, the continent of Africa was hominins' likely place of origin.
On which evidence history suggests that Africa is the origin for hominids?
Ans: Evidences which suggest that Hominoids have African origin are: 1. A group of African apes is closely related to Hominoids. 2. Early Hominoids have been found in East Africa dated back to 5.6.
What is the best supported hypothesis for how platyrrhines reached South America?
Platyrrhines evolved from an African anthropoid and migrated across the Atlantic to South America. – Evidence supports this hypothesis. There were early anthropoids in Africa beginning in the late Eocene, and they predated platyrrhines but looked remarkably similar to the earliest platyrrhines in South America.
What have researchers concluded about the origins of African great apes?
But the researchers said their findings added to evidence that Africa was the place of origin of both humans and modern African apes and indicated that gorillas split off from a common ancestor with humans and chimpanzees long before the generally accepted time of 7 to 8 million years ago.
Which of the following statements regarding the foraging methods of great apes gorillas orangutans chimpanzees and humans are true?
Which of the following statements regarding the foraging methods of great apes (gorillas, orangutans, chimpanzees, and humans) are true? correct: Different apes use different techniques to obtain extracted foods. Orangutans use tools to process some foods.
Which of the following traits could be used to determine whether an ape is also a hominin?
Some characteristics that have distinguished hominins from other primates, living and extinct, are their erect posture, bipedal locomotion, larger brains, and behavioral characteristics such as specialized tool use and, in some cases, communication through language.
What led to the development of the Out of Africa hypothesis?
The Out of Africa hypothesis— the idea of an African origin for a recent modern human species—owes its genesis to interpretations of mtDNA, which suggested that the ancestors of recent humans first appeared in Africa and replaced other populations because they were a new species that did not interbreed (Cann, Stoneking …
How did New World monkeys arrive in South America?
In fact, scientists think primates first traveled from Africa to South America 40 million years ago by floating across the Atlantic on the same kinds of mats.
What is the likely explanation for how monkeys first appeared in South America?
In a strange twist of evolutionary history, the ancestors of modern South American monkeys such as the capuchin and woolly monkeys first came to the New World by floating across the Atlantic Ocean on mats of vegetation and earth.
What evidence supports the common ancestor of humans and chimpanzees?
Evidence from fossils, proteins and genetic studies indicates that humans and chimpanzees had a common ancestor millions of years ago. Most scientists believe that the 'human' family tree (known as the sub-group hominin) split from the chimpanzees and other apes about five to seven million years ago.
Which of the following statements regarding the foraging methods of great apes?
Which of the following statements regarding the foraging methods of great apes (gorillas, orangutans, chimpanzees, and humans) are true? correct: Different apes use different techniques to obtain extracted foods.
What evidence is there that monkeys and apes have culture?
While nonhuman primates don't have obvious cultural traditions the same way humans do, such as variation in their clothing or adding extra spice to their food, primatologists have nonetheless identified behavioral practices that vary between communities and which are transmitted through social learning.
Which hypothesis is supported by the characteristics of Lucy and other?
Which hypothesis is supported by the characteristics of Lucy and other Australopithecus afarensis? Bipedalism arose very early in hominin evolution, prior to enlargement of the brain. Orrorin tugenensis is the name given to a fossil hominin from 6 million years ago.
Which statement is a tenet of the Out of Africa hypothesis for the origin of modern humans?
There are different versions of “Out of Africa,” but its major tenet is that modern humans originated as a discrete population or species that rapidly expanded and replaced archaic humans that were indigenous to other parts of the Old World: Homo erectus (or its descendents) in East and South Asia, and Neanderthals in …
What evidence supports the Out of Africa hypothesis?
Supporting Evidence The oldest Homo sapiens fossils are found in Africa around 195,000 years ago. Homo sapiens fossils found outside Africa are not nearly as old. As a general rue, the closer a country is to Africa the older some of it's Homo sapien fossils are. This supports an African origin.
What does the Out of Africa hypothesis state?
The Out of Africa hypothesis is a model for the origin and dispersal of modern humans. The hypothesis contends that humans evolved in East Africa, dispersing to populate the rest of the world from c. 70,000 years ago, replacing, rather than interbreeding with, the archaic hominins that were resident outside of Africa.
How did New World monkeys migrate from Africa?
In fact, scientists think primates first traveled from Africa to South America 40 million years ago by floating across the Atlantic on the same kinds of mats.