Changes

=== Reproductive Tract ===

=== Reproductive Tract ===

* [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Anatomical_Types_of_Uteri|Bicornuate uterus]]

* [[Female_Reproductive_Tract_-The_Uterus_- Anatomy & Physiology#Anatomical_Types_of_Uteri|Bicornuate uterus]]

* Two channels of the [[Female_Reproductive_Tract_-The_Cervix_-_Anatomy_%26_Physiology|cervix]] separated almost to the single entrance into the [[Female_Reproductive_Tract_-The_Vagina/Vestibule_-_Anatomy_%26_Physiology|vagina]].

* Two channels of the [[Female_Reproductive_Tract_-The_Cervix_- Anatomy & Physiology|cervix]] separated almost to the single entrance into the [[Female_Reproductive_Tract_-The_Vagina/Vestibule_- Anatomy & Physiology|vagina]].

* Polyoestrous

* Polyoestrous

* [[Female_Reproductive_Tract_-Oestrous_Cycle_-_Anatomy_%26_Physiology|Oestrous cycle]] length: 4-6 days

* [[Female_Reproductive_Tract_-Oestrous_Cycle_- Anatomy & Physiology|Oestrous cycle]] length: 4-6 days

* Post-parturient oestrus

* Post-parturient oestrus

* Spontaneous [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulator]].

* Spontaneous [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulator]].

=== Breeding Characteristics ===

=== Breeding Characteristics ===

* Monogamous (in contrast to [[Small_Mammals_-Rat-_Anatomy_%26_Physiology|rats]] and [[Small_Mammals_-Mouse-_Anatomy_%26_Physiology|mice]]).

* Monogamous (in contrast to [[Small_Mammals_-Rat- Anatomy & Physiology|rats]] and [[Small_Mammals_-Mouse- Anatomy & Physiology|mice]]).

* Mating usually occurs in the evening.

* Mating usually occurs in the evening.

* Copulation plug is small and lies deep in the [[Female_Reproductive_Tract_-The_Vagina/Vestibule_-_Anatomy_%26_Physiology|vagina]], so cannot easily be detected.

* Copulation plug is small and lies deep in the [[Female_Reproductive_Tract_-The_Vagina/Vestibule_- Anatomy & Physiology|vagina]], so cannot easily be detected.

=== Gestation and Offspring===

=== Gestation and Offspring===