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Macintosh Picture Format  |  1996-09-10  |  294.9 KB  |  640x480  |  8-bit (200 colors)
   ocr: - - 44 Unisexual - - - - Whiptaild Lizards MOST PRODUCIS OF CROSSBREEDING, SUCH AS THE mule, are sterile. But the New Mexico whiptail, a hybrid of the western whiptail and the little striped whiptail, does reproduce, and all of its offspring are female. Moreover, it reproduces by parthenogenesis-i1ts eggs require no fertilization, and each offspring is an exact genetic duplicate of the mother. Certain chromosomes of the western whiptail, a desert dweller, differ distinctly from those of the little striped whiptail, which inhabits grasslands. Each individual in both species has two identical se ...