[Sacramento, CA] Darwin Day
Note: This is a global event that appears on all event calendars.
Presented by the Darwin Day Committee of Sacramento.
Mark your calendars now for February 17, 2013, from 2:30 to 4:30 pm (doors open at 2 pm) for the Sacramento Darwin Day Event that will celebrate Darwin's 204th birthday. It will be held at the John Smith Hall in the La Sierra Community Center, 5325 Engle Road, Carmichael, CA.
TOPIC: "Evolution's Witness". Life began 3.75 billion years with photoreception as key to its survival. Those first living cells made use of light as an energy source and evolved based on the influence of light over the ensuing three billion years. Then, with the early forms of vision and predation as catalysts, the first known eye appeared during the Cambrian period in an animal known as a trilobite approximately 550 million years ago. This period was a crucible of evolution and exploded with anatomic creativity. The Cambrian spawned nearly all morphologic forms of the eye, followed by descent over hundreds of millions of years providing unimaginable variety through at least 10 different designs. These ocular designs include eyes that can be called simple, compound, and camera style eyes but some display spectacular creativity with mirror, scanning or telephoto optics. Vision was a principal, although not the only, determinant of evolution and its direction. Some of these ocular designs are merely curiosities, but others offer the finest visual potential packed into a small space, limited only by the laws of diffraction or physiological optics. We should be so lucky.
ABOUT THE SPEAKER:
Ivan R. Schwab, M.D. is a Professor of Ophthalmology at the University of California, Davis and the author of a new book on the evolution of the eye. Entitled "Evolution's Witness: How Eyes Evolved," this book was named one of the twelve best science books of 2011 by Scientific American. He will discuss the evolution of the eye and illustrate how eyes developed. His talks are lively and filled with interesting information and magnificent photography.
Dr. Schwab is a graduate of West Virginia University (WVU) in 1969 with a bachelor's degree in biology from the Eberly College of Arts and Sciences and received a medical degree from WVU in 1973. Completing his residency at Pacific Medical Center in San Francisco and following three fellowships in Ophthalmology, Dr. Schwab returned to WVU as a faculty member in the School of Medicine for seven years beginning in 1982. In 1989, he moved to the University of California, Davis, and has been on its faculty since then as Professor of Ophthalmology. He has an active practice, and is engaged in research on ocular surface disease, and was the first person in the United States to successfully transplant bioengineered tissue to the ocular surface in 1999.
For more information or to purchase tickets visit sacdarwinday.info.