what type of reproduction do whiptail lizards use
parthenogenesis Parthenogenesis parthenogenic
title: New Mexico whiptail text: The lizard is a female-only species that reproduces by producing an egg through parthenogenesis. Despite reproducing asexually, and being an all-female species, the whiptail still engages in mating behavior with other females of its own species. A common theory is that this behavior stimulates ovulation, as those that do not "mate" do not lay eggs. New Mexico whiptail The New Mexico whiptail ("Aspidoscelis neomexicanus") is a female-only species of lizard found in the southwestern United States in New Mexico and Arizona, and in northern Mexico in Chihuahua. It is the official state reptile of New Mexico. It is one of title: Green whip snake text: whip snake has a wide distribution and is very common within that range. The population is steady and faces no significant threats, apart from road kill and persecution, and the International Union for Conservation of Nature has assessed its conservation status as being of "least concern". These snakes mainly feed on lizards, skinks, frogs, mice, as well as on the young and eggs of small birds. This species lays four to 15 eggs. They are very lively and usually bite furiously. They hibernate in winter. Commonly regarded as non-venomous, it is described that a subject who endured 'sustained biting' of title: Desert grassland whiptail lizard text: sister chromatids instead of pairing homologous chromosomes, thus allowing a recombination and genetic diversity. Current studies suggest that the lizards may be able to distinguish between homologous chromosomes and sister chromatids. The lizard is a triploid unisexual species that reproduce asexually. The lizards were a result from a cross breed of two bisexual species, "A. inornata" and "A. burti". This then produced a diploid unisexual, which backcrossed to "inornata" and produced triploid "uniparens". For the most part, the lizards eat spiders, termites, antlions, beetles, and short-horned grasshoppers. Their dominant foods vary little over time. Research suggests that this may be title: New Mexico whiptail text: blue-green colored throat. They are slender bodied, with a long tail. Like most other whiptail lizards, the New Mexico whiptail is diurnal and insectivorous. They are wary, energetic, and fast moving, darting for cover if approached. They are found in a wide variety of semi-arid habitats, including grassland, rocky areas, shrubland, or mountainside woodlands. Reproduction occurs through parthenogenesis, with up to four unfertilized eggs being laid in mid summer, and hatching approximately eight weeks later. The New Mexico whiptail lizard is a crossbreed of a western whiptail, which lives in the desert, and the little striped whiptail, which favours grasslands. title: Animal sexual behaviour text: (female) lizards engage in "masculine" sexual roles. Those animals with currently high oestrogen levels assume "feminine" sexual roles. Lizards that perform the courtship ritual have greater fecundity than those kept in isolation due to an increase in hormones triggered by the sexual behaviours. So, even though asexual whiptail lizards populations lack males, sexual stimuli still increase reproductive success. From an evolutionary standpoint these females are passing their full genetic code to all of their offspring rather than the 50% of genes that would be passed in sexual reproduction. It is rare to find true parthenogenesis in fishes, where females produce