Transcaucasian mole vole

The Transcaucasian mole vole (Bramus lutescens) is a species of rodent in the family Cricetidae.

It is found in Armenia, Azerbaijan, Georgia, Iran, and Turkey.

Reproduction
Transcaucasian mole vole, they reproduce during the months of April to October, breeding in march-April and October-November, in which the females would gestate their young for 26 days( almost a month). After birth the pups of the Transcaucasian mole vole, they would stay with their mother for about two months. During the pups 1-4 week of their life it would be just feeding with their mother, and developing their motor functions and being able to be weaned off milk and be able to eat solid food. The final and fifth week the pups would be able to be weaned off the milk and eat vegetables by themselves  and be able to walk by themselves without difficulty.

Chromosomes
The karyotype has a low, odd, diploid number, 2n = 17,X. Transcaucasian mole voles have no SRY gene or Y chromosome; both sexes have an XO sex chromosome set, a state possibly derived from an ancestral population in which males had an XX sex chromosome set, like E. tancrei. Their sex-determination method remains unknown.