home *** CD-ROM | disk | FTP | other *** search
/ Treasures of the America…Museum of Natural History / Treasures of the American Museum of Natural History.iso / pc / treasure / tr44 / t44pg02.pic (.png) < prev    next >
Macintosh Picture Format  |  1996-09-10  |  192.7 KB  |  640x310  |  8-bit (174 colors)
   ocr: - Lizards the grassland species. Scientists only partially understand how this reproductive mode developed, and it raises many questions. One of the most intriguing is how cloning affects the lizard's ability to adapt to environmental changes. Since there is no genetic variation except that which occurs through rare mutations, the lizard cannot evolve as other species do. The New Mexico whiptail lizard offers an extraordinary opportunity to learn more about the role of sperm in fertilization, as well as about cloning. 212