Extinction: A Lesson from the Past

Duration: 13

Genre: Educational

Year Published: 1971

Creator: reinald werrenrath

Format: 16mm

Color: Color

Sound: sound

Copyright: Registered 1May71 · MP21642 (Jul-Dec 1971) Copyright holder: Reinald Werrenrath, Jr

Description: Uses drawings to outline three prehistoric periods of 500, 350, and 70 million years ago, to identify the then-living animals by fossil remains, and to point out that the principal cause of extinction was an inability to adapt to a changing environment., Describes the work of a paleontologist, and explains the basic causes of extinction that occurred to most animal species over the period of prehistoric life. Studies those species which still exist today, and analyzes why other species from earlier eras are extinct.

Complete Record: Uses drawings to outline three prehistoric periods of 500, 350, and 70 million years ago, to identify the then-living animals by fossil remains, and to point out that the principal cause of extinction was an inability to adapt to a changing environment., Describes the work of a paleontologist, and explains the basic causes of extinction that occurred to most animal species over the period of prehistoric life. Studies those species which still exist today, and analyzes why other species from earlier eras are extinct.NOTE: Two (or more) records have been merged together to create this data.