ANTH 110 1nd Edition Lecture 11Outline of Last Lecture I. Speciation II. Ancestral and Derived TraitsOutline of Current Lecture I. The Primate Order II. Evolutionary TrendsCurrent Lecture I. The Primate OrderThere are two suborders or the order "primate". We are members of the Haplorhini suborder. The other suborder is the Strepsirhini.- Strepsirhini (classified by the "bent nose".)-Haplorhini (classified by the "simple nose".)About 50+ million years ago, new world monkeys diverged from the original Haplorhini suborder. Since then, multiple branches have been formed. The two main members of Strepsirhini suborder are Lemurs and Lorises. Taxonomy has changed over the years because we can now understand molecular information of animals. II. Introduction to Evolutionary TrendsEvolutionary trends are traits that apply to all primates. We call them trends because there are variations in how those traits are exhibited by smaller and larger primates. These trends are based on arboreal adaptations and can grouped into 4 classes:(Note: Only 1 of these 4 classes was covered during this lecture.)These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- Locomotor trends- All primates have a generalized skeleton.- All primates share a manual facility of hands (grasping ability, or prehensility). Every primate also has opposable thumbs.- All primates are pentadactyl (having five digits).- All primates have nails and tactile acuity. It is important to keep in mind that all primates have nails, not claws. - All primates have a tendency to erect posture in torso.- All primates have clavicular retention. In other words, our collarbone keeps our shoulders to the side, thus aiding in shoulder mobility. - Dietary trends - Sensory trends- Life History/Behavioral
View Full Document
Unlocking...