Results 101 to 110 of about 19,963 (235)

Shifts in type 2 vomeronasal receptor expression during postnatal development in the lungfish olfactory organ

open access: yesJournal of Anatomy, Volume 249, Issue 4, Page 978-986, October 2026.
Lungfish possess a lamellar OE and a primitive VNO called as a recess epithelium (RecE). Among the lungfish V2Rs expressed in both the lamellar OE and the RecE in small individuals, some became restricted to the RecE in large individuals. These results suggest functional separation between the lamellar OE and the RecE is still incomplete in juveniles ...
Shoko Nakamuta   +5 more
wiley   +1 more source

Tadpoles : The Biology of Anuran Larvae

open access: yes, 1999
xiv,444 hal,;ill,;28 ...
McDiamid,Roy W(Ed), Altig,Ronald
core  

Feeding Tadpoles Cloned from Rana Erythrocyte Nuclei

open access: yes, 1986
FEEDING TADPOLES CLONED FROM RANA ERYTHROCYTE NUCLEI Feeding Tadpoles Cloned from Rana Erythrocyte Nuclei (83) (-
Di Berardino, Marie A. Nancy Hoffner Orr Robert G. McKinnell
core   +2 more sources

Reversão sexual de rã-touro (Rana catesbeiana) com hormônio masculinizante misturado à ração de girinos Sexual reversion of bullfrog with masculinizing hormone added to the tadpole ration

open access: yesRevista Brasileira de Zootecnia, 2001
Este trabalho consistiu em testar a eficiência de um hormônio masculinizante (17beta-hidróxi-17-metil-andróxi-4-en-3-ona) na reversão sexual de girinos de rã-touro (Rana catesbeiana).
Claudio Angelo Agostinho   +2 more
doaj   +1 more source

Estimating Area of Occupancy From Incomplete Occurrence Records: Reproducible Workflow Illustrated on a Comprehensive Dataset of Georgian Snakes

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
The workflow is presented that helps to optimize grid‐cell size by breakpoint search and to estimate the area of occupancy (AOO) more precisely, if the occurrence data are incomplete. The model was validated on 13 colubrid snakes found in Georgia. The scripts in R and full statistical workflow are provided in the paper and the Supporting Information ...
Giorgi Iankoshvili, David Tarkhnishvili
wiley   +1 more source

The Tadpoles of Hyla rufitela (Anura: Hylidae)

open access: yes, 2016
: The validity of the published description of Hyla rufitela is questioned because the origin of the described tadpoles does not correspond to the distribution of this species.
Hoffmann, Heinz, Heinz Hoffmann
core   +1 more source

Muscle regeneration in frog tadpoles

open access: yes, 1965
Muscle regeneration after tail amputation in old and young tadpoles of frogs is studied histologically. The former age group of animals included 6-months old, 70 to 90 mm long tadpoles of Rana clamitans and 6- week old, 23 to 33 mm long, larvae of Rana ...
Niazi, I. A.
core   +1 more source

Efeito do fotoperíodo sobre o desenvolvimento de girinos de rã-touro (Rana catesbeiana Shaw, 1802) Effect of the photoperiod on bullfrog (Rana catesbeiana Shaw, 1802) tadpoles development

open access: yesRevista Brasileira de Zootecnia, 2004
O objetivo deste trabalho foi avaliar o efeito de diferentes fotoperíodos sobre o peso, comprimento e a metamorfose de girinos de rã-touro (Rana catesbeiana Shaw, 1802).
Andrea Cecchetto Bambozzi   +3 more
doaj   +1 more source

Effects of Salinity and Temperature on Survival, Growth, and Food Intake of Ramshorn Snail (Helisoma anceps)

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
This study examines how salinity and temperature affect the survival, growth, and food intake of the freshwater snail Helisoma anceps. Snails exposed to salinities of 10 ppt and above died within 48 h, while growth and food intake decreased as salinity increased. The results provide information on the environmental limits of H. anceps and its use under
Szu‐Han Chen, Tien‐Chieh Hung
wiley   +1 more source

Redescripción de la morfología larval externa de dos especies del grupo de Leptodactylus fuscus (Anura, Leptodactylidae) [PDF]

open access: yesPhyllomedusa: Journal of Herpetology, 2005
The larvae of Leptodactylus gracilis (D’Orbigny y Bibron, 1840) and L. mystacinus Bumeister, 1861 are re-described and compared with previous descriptions noting intraspecific variation in oral disccharacteristics (arrangement of papillae and rows of ...
José A. Langone, Rafael O. de Sá
doaj  

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