Cloaca
Videos
A cloaca, pl.: cloacae, or vent, is the rear orifice that serves as the only opening for the digestive, reproductive, and urinary tracts of many vertebrate animals. All amphibians, reptiles, birds, ca
Cloaca of a red-tailed hawk
Cloaca of a female bird
Cloaca of a male bird
A roseate spoonbill excreting urine in flight
Reproductive system
Videos
The reproductive system of an organism, also known as the genital system, is the biological system made up of all the anatomical organs involved in sexual reproduction and asexual reproduction. Many n
A newborn joey suckles from a teat found within its mother's pouch
A male common frog in nuptial colors waiting for more females to come in a mass of spawn
Animal castration a book for the use of students and practitioners
The comparative anatomy of the domesticated animals