Pterosaur Respiratory System
by Mark P. Witton/science Photo Library
Title
Pterosaur Respiratory System
Artist
Mark P. Witton/science Photo Library
Medium
Photograph - Photograph
Description
Pterosaur respiratory system. Artwork of a pair of flying Anhanguera sp. pterosaurs. The main pterosaur has been cut-away to reveal bird-like pulmonary air sac respiratory system (green and blue) and lungs (red). Some scientists have speculated that pterosaurs evolved this respiratory system before birds had evolved. Pulmonary air sacs store air and act like bellows, allowing the lungs to maintain a fixed volume with fresh air flowing through them. Powered flight requires a high oxygen demand. Anhanguera lived from the Early to Late Cretaceous (112-94 million years ago).
Uploaded
September 26th, 2018
Statistics
Viewed 292 Times - Last Visitor from New York, NY on 03/25/2024 at 7:30 AM
Embed
Share
Sales Sheet
Comments
There are no comments for Pterosaur Respiratory System. Click here to post the first comment.