Sentences with phrase «of whiptails»

«In case of the whiptail lizard in the New Mexican desert which consists only of females, a type of pseudo-copulation still takes place before eggs start developing, suggesting evolution places certain checks on completely eliminating sex and sexual behavior,» said Prof. Alexander Mikheyev, head of OIST's Ecology and Evolution Unit, the paper's co-author.

An all - female species of whiptail lizards presents a unique opportunity to test hypotheses regarding the nature and the evolution of sexual behavior

Not exact matches

Asexual whiptails have a special trick for making spermless reproduction work: The egg cells in other animals first double their choromosomes once and then divide twice, leaving them as haploid cells, with half the normal number of genetic material.

Pairs of female whiptails sometimes engage in mock sex, which led to the nickname «lesbian lizards» and seems to encourage the production of egg cells.

But the whiptails» egg cells first double their chromosomes twice and then divide twice, leaving them with the normal number of chromosomes and rendering a sperm cell unnecessary.

Living in the deserts of the U.S. Southwest and parts of northern Mexico, the New Mexico whiptail is an all - female species of lizard.

The creatures first arose as hybrids between two closely related species of sexually reproducing lizards: the little striped whiptail (A. inornata) and the tiger whiptail (A. tigris).

Henceforth and forever all whiptails will honor the memory of Whiptail the Tenth and Queen Cnemetail.

Since then, Crews has used the whiptail lizard to study the evolution of behavior and the neurobiology of gender differences.

Hikers can expect to see a wide variety of fascinating wildlife including the Aruban burrowing owl (Shoco), Aruban rattlesnake, Aruban whiptail lizard, and the Aruban parakeet (Prikichi).

Isla San Cosme has three species of reptiles: Aspidoscelis tigris (tiger whiptail), Sauromalus ater (common chuckwalla), and Urosaurus nigricaudus (black - tailed brush lizard).

After two hours of searching the cactus, aloe, and prickly acacia — sometimes crawling to get a better look at tree trunks and leaf litter — I counted exactly six whiptail lizards, three toads, two geckoes, and one santanero.

In the lizard world, vulnerable creatures that they are, there's the flying dragon, thorny devil, whiptail, Jaragua sphaero, chuckwalla, and so on... all of them possess quite novel approaches to survival, such as the side - flap that gives the flying dragon its namesake, or the thorny devil with a mouth so wide it can consume thousands of ants in a single sitting.