PPT-Hominid Evolution in Context

Ancient hominid fossils not accepted as ancestors Biases in fossil record from 19 th century Fossil remains of species not that old Homo erectus amp Neanderthal Found in Asia and Europe. Roger L. Costello. February 16, 2014. 1. Objective: . Show that Type 2 is a subset of Type 1. 2. Grammars: a brief refresher. A grammar is a concise way to specify a language.. A language is a set of strings.. http://www.wsu.edu/gened/learn-modules/top_longfor/timeline/01_notes_definitions.html. Sahelanthropus. . tchadensis. (7 . mya. ). fossils of six and perhaps as many as nine individuals. oldest hominid. Lecture Outline What Is a Hominid? How can we identify one? Review Bipedality PostCranial Structure Dentition Cranial Features PreHomoHominid Sites Early Hominids? Sahelanthropus tchadensis Orrorin tu Who are we? . Where did we come from? . What is the human genealogy? . These are basic questions that we all ask. Humans did not evolve . from. Apes. You are . descended. from your mother and father. Hominids.  family of organism that includes humans. Earliest subgroup of primates. FAMILY is a classification level between ORDER and GENUS. First appeared between 6 and 7 million ears ago. Has evolved several times..we can tell by looking at fossil evidence…Skulls in particular. NAS/HHMI Summer Institute 2011. Presented by the ‘Model Organisms’:. Stephanie Gardner. . and Laurie . Iten. , . Purdue University. Elizabeth . Derryberry, David . Heins. , and . Donata. Henry, Tulane University. A mechanism for change in populations.. Any change in the . inherited . traits within a population across generations. Individuals better adapted to their environment tend to survive and . produce more offspring. 2 Divisions of Primates. 1. Anthropoid primates. 2. . Prosimean. primates. Characteristics:. Nails (no claws). Prehensile hands and feet (grasping). Color vision and depth perception. Anthropoid Primates. Details in the surrounding text give you clues to the word’s meaning. . Types of Context Clues. Definition. The word is directly and clearly defined in the sentence in which it appears. . Example: “The . How are we similar?. How are we different?. Apes and Humans. Ape Family Tree. What about our relation to Apes?. ?. Questions to consider. :. When did we evolve?. Where did we come from?. How did we evolve?. INTRODUCTION. Evolution is a gradual process in which something changes into a different and usually more complex or better form.. Biological evolution is defined as organisms reproducing but experiencing changes with each generation. Evolution can happen in a small and large context. There are small genetic changes between generations, as well as large changes that happen over multiple generations.. of . the Red . Queen. CfE. . Advanced Higher Biology. Unit . 2: . Organisms and Evolution. SQA mandatory key information. A change in the traits of one species acts as a selection pressure on the other species. . Chapter 17: Processes of Evolution. Early Beliefs. 19. th. century: discovered species shared many traits, but lived in different parts of the world. Problematic – species only looked similar on the outside, but inside were very different . . The process by which organism change over time. Based on science, not opinion.. Darwin. :. Evolution is descent with modification. Evolution. :. changes through time. Species accumulate difference.