Emergence, Breeding, Hibernation, Movements and Transformation of the Bullfrog, Rana catesbeiana, in Missouri
โ Scribed by Yuell L. Willis, Don L. Moyle and Thomas S. Baskett
- Book ID
- 118128242
- Publisher
- The American Society of Ichthyologists and Herpetologists
- Year
- 1956
- Tongue
- English
- Weight
- 814 KB
- Volume
- 1956
- Category
- Article
- ISSN
- 0045-8511
- DOI
- 10.2307/1439241
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This study describes the development of different spontaneous and elicited behaviors of frogs and their relationship to morphological, physiological, and ecological changes of metamorphosis. Tadpoles were studied at all stages of development from Stage XVIII, the onset of metamorphosis, to Stage XXV
## Abstract In bullfrog (__Rana catesbeiana__) tadpoles, the lung begins to function at an advanced stage of metamorphosis. As a preliminary step for investigation of the mechanisms involved in lung maturation, pulmonary surfactant was prepared from tadpoles at advanced stages of metamorphosis and