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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.Many non-living substances such as fluids, hormones, and pheromones are also important accessories to the reproductive system. [1]
The idea of an egg-giving hare went to the U.S. in the 18th century. Protestant German immigrants in the Pennsylvania Dutch area told their children about the " Osterhase " (sometimes spelled " Oschter Haws " [21]). Hase means "hare", not rabbit, and in Northwest European folklore the "Easter Bunny" indeed is a hare.
Male genitalia of Lepidoptera. The main component of the male reproductive system is the testicle, suspended in the body cavity by tracheae and the fat body.The more primitive apterygote insects have a single testis, and in some lepidopterans the two maturing testes are secondarily fused into one structure during the later stages of larval development, although the ducts leading from them ...
Skip forward to 1682, and we find the German physician and botanist Georg Franck von Franckenau recounting the children’s story of Oschter Haws, who laid eggs in the garden, which children would ...
Cloaca of a red-tailed hawk. A cloaca (/ k l oʊ ˈ eɪ k ə / ⓘ kloh-AY-kə), pl.: cloacae (/ k l oʊ ˈ eɪ s i / kloh-AY-see or / k l oʊ ˈ eɪ k i / kloh-AY-kee), or vent, is the rear orifice that serves as the only opening for the digestive (), reproductive, and urinary tracts (if present) of many vertebrate animals.
Oviparous animals producing eggs with thin tertiary membranes or no membranes at all, on the other hand, use external fertilisation methods. Such animals may be more precisely termed ovuliparous. [21] External fertilisation is advantageous in that it minimises contact (which decreases the risk of disease transmission), and greater genetic ...
The word rabbit derives from the Middle English rabet ("young of the coney"), a borrowing from the Walloon robète, which was a diminutive of the French or Middle Dutch robbe ("rabbit"), a term of unknown origin. [1] The term coney is a term for an adult rabbit used until the 18th century; rabbit once referred only to the young animals. [2]
In animals, parthenogenesis means development of an embryo from an unfertilized egg cell. In plants, parthenogenesis is a component process of apomixis. In algae, parthenogenesis can mean the development of an embryo from either an individual sperm or an individual egg.