It may follow a diminished functional activity, as in the atrophying thymus gland' and in the muscle cells of the uterus after parturition.
Viviparous parturition is known among the Caudata (Salamandra, Spelerpes fuscus), and the Apoda (Dermophis thomensis, Typhlonectes cornpressicauda); also in a little toad (Pseudophryne vivipara) recently discovered in German East Africa (41).
oxytocin, for instance, is essential for parturition and lactation, and oxytocin released into the brain is important in reproductive behaviors.
parturition in cattle.
ALYTES, the midwife toad, first discovered by P. Demours in 1741, on the border of a small pond in the Jardin des Plantes, in the very act of parturition which has rendered it famous, and described as Petit crapaud male accoucheur de sa femelle.