Chipmunk Reproduction - Anatomy & Physiology
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BACK TO REPRODUCTIVE SYSTEM
BACK TO SMALL DOMESTIC MAMMALS
Penis
- Os penis lies within the tissue of the penis.
Testes
- Two testes in an external scrotum.
- Testes descend into the scrotum in January and begin spermatogenesis.
- Open inguinal canals throughout life.
- Allows testes to shrink and return to the abdomen in the non-breeding season.
Puberty and Sexual Maturity
- Sexually mature at 6-7 weeks.
Mammary Gland
- Teats are absent.
Female
- Bicornate uterus
- Short uterine body
- Single cervix
- Seasonally polyoestrous* Spontaneous ovulators
- Breeding season March-September
- Oestrus lasts three days
- Advertises willingness to mate with persistent chipping noise on the second day.
- 4 pairs of teats