Britannica
Sources used in this answer
- animal reproductive system - Provisions for the developing embryo
- Gymnophiona - Breeding behaviour
- animal reproductive system - Provisions for the developing embryo
- frog and toad - Direct development from egg to froglet
- moss animal - Reproduction
- prenatal development - Yolk sac
- animal development - Adaptations in animals other than mammals
How does a developing caecilian fetus get nourishment after using its yolk?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
Gymnophiona
Caecilian moving over soil.
Once a developing caecilian fetus has exhausted its limited yolk supply, it utilizes specialized deciduous teeth to scrape and ingest secretions and epithelial tissues from the lining of the mother's oviduct. This process allows the fetus to continue its development within the parent.1