Primates are a group of mammals that includes humans, apes, monkeys, and prosimians. They are characterized by their advanced cognitive abilities, flexible limbs, and forward-facing eyes. Primates are found in various habitats around the world, and they exhibit a wide range of behaviors and social structures.
Classification of Primates
Primates are classified into two suborders: Prosimii (or prosimians) and Anthropoidea (or anthropoids).
Prosimii: This group includes lemurs, lorises, and tarsiers. They are typically smaller in size and have characteristics that are more primitive compared to anthropoids.
Anthropoidea: This group includes monkeys, apes, and humans. They are generally larger in size and have more advanced cognitive abilities.
Characteristics of Primates
Some key characteristics of primates include:
Opposable thumbs: Most primates have opposable thumbs, which allow them to grasp and manipulate objects with precision.
Binocular vision: Primates have forward-facing eyes, which provide them with depth perception and improved visual acuity.
Large brain relative to body size: Primates have relatively large brains compared to other mammals, which is associated with their advanced cognitive abilities.
Construct an explanation based on evidence that the process of evolution primarily results from four factors: (1) the potential for a species to increase in number, (2) the heritable genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for limited resources, and (4) the proliferation of those organisms that are better able to survive and reproduce in the environment.
Apply concepts of statistics and probability to support explanations that organisms with an advantageous heritable trait tend to increase in proportion to organisms lacking this trait.
Construct an explanation based on evidence for how natural selection leads to adaptation of populations.