![Expression Image Expression Image](image/thumbnail/XB-IMG-191362.jpg) NF stage 12.5 Perfetto, et al. 2021
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-191365.jpg) NF stage 12.5 Perfetto, et al. 2021
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-191366.jpg) NF stage 12.5 Perfetto, et al. 2021
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-47169.jpg) NF stage 12.5 to NF stage 13 Wei, et al. 2010
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-78264.jpg) NF stage 11 to NF stage 13 Zhang, et al. 2006
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-78265.jpg) NF stage 13 Zhang, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-78266.jpg) NF stage 13 Zhang, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-192338.jpg) NF stage 13 Wang, et al. 2021
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-1256.jpg) NF stage 12.5 to NF stage 14 O'Donnell, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-46463.jpg) NF stage 14 Saint-Germain, et al. 2004
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-79336.jpg) NF stage 14 Xu, et al. 2012
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-173201.jpg) NF stage 14 Devotta, et al. 2018
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-176845.jpg) NF stage 13 to NF stage 14 Greenberg, et al. 2019
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-24070.jpg) NF stage 15 Kuriyama, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-24813.jpg) NF stage 15 Park, et al. 2008
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-135993.jpg) NF stage 15 Matsukawa, et al. 2015
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-148788.jpg) NF stage 15 Kurauchi, et al. 2010
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-158205.jpg) NF stage 15 Yokota, et al. 2017
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-158206.jpg) NF stage 15 Yokota, et al. 2017
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-158207.jpg) NF stage 15 Yokota, et al. 2017
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-158210.jpg) NF stage 15 Yokota, et al. 2017
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-175398.jpg) NF stage 15 Hatch, et al. 2016
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-192343.jpg) NF stage 15 Wang, et al. 2021
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-24977.jpg) NF stage 16 Bonano, et al. 2008
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-84824.jpg) NF stage 16 Hulstrand, et al. 2013
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-151251.jpg) NF stage 16 Gouignard, et al. 2016
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-154161.jpg) NF stage 16 Neilson, et al. 2017
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-173340.jpg) NF stage 15 to NF stage 16 Cerrizuela, et al. 2018
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-1255.jpg) NF stage 17 O'Donnell, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-24072.jpg) NF stage 17 Kuriyama, et al. 2006
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-41487.jpg) NF stage 17 Casini, et al. 2010
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-74038.jpg) NF stage 17 Lee, et al. 2011
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-77665.jpg) NF stage 17 Ochoa, et al. 2012
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-78263.jpg) NF stage 17 Zhang, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-84111.jpg) NF stage 17 Lee, et al. 2004
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-139650.jpg) NF stage 17 Nordin, et al. 2014
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-171607.jpg) NF stage 15 to NF stage 17 Bradley, et al. 2018
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-1945.jpg) NF stage 18 Abu-Elmagd, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-24071.jpg) NF stage 18 Kuriyama, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-24628.jpg) NF stage 18 Monsoro-Burq, et al. 2003
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-74152.jpg) NF stage 17 to NF stage 18 Shi, et al. 2011
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-74153.jpg) NF stage 17 to NF stage 18 Shi, et al. 2011
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-74154.jpg) NF stage 17 to NF stage 18 Shi, et al. 2011
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-74159.jpg) NF stage 18 Shi, et al. 2011
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-76436.jpg) NF stage 18 Pieper, et al. 2012
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-77783.jpg) NF stage 18 Pieper, et al. 2012
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-79440.jpg) NF stage 18 Shi, et al. 2012
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-79443.jpg) NF stage 18 Shi, et al. 2012
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-146151.jpg) NF stage 18 Tien, et al. 2015
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-146153.jpg) NF stage 18 Tien, et al. 2015
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-153735.jpg) NF stage 17 to NF stage 18 Lee, et al. 2011
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-171606.jpg) NF stage 17 to NF stage 18 Bradley, et al. 2018
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-172715.jpg) NF stage 18 Lin, et al. 2017
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-180456.jpg) NF stage 16 to NF stage 18 Sullivan, et al. 2019
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-180795.jpg) NF stage 16 to NF stage 18 Shah, et al. 2020
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-180796.jpg) NF stage 16 to NF stage 18 Shah, et al. 2020
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-189979.jpg) NF stage 13 to NF stage 18 Neilson, et al. 2020
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-197507.jpg) NF stage 18 Pandey, et al. 2023
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-2968.jpg) NF stage 19 Zhao, et al. 2008
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-184380.jpg) NF stage 18 to NF stage 19 Farley-Barnes, et al. 2020
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-74857.jpg) NF stage 20 Heeg-Truesdell, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-42805.jpg) NF stage 13 to NF stage 21 Guémar, et al. 2007
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-42809.jpg) NF stage 13 to NF stage 21 Guémar, et al. 2007
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-44800.jpg) NF stage 13 to NF stage 21 Guémar, et al. 2007
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-44804.jpg) NF stage 13 to NF stage 21 Guémar, et al. 2007
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-45836.jpg) NF stage 13 to NF stage 21 Voigt, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-48248.jpg) NF stage 13 to NF stage 21 Luo, et al. 2003
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-48249.jpg) NF stage 21 Luo, et al. 2003
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-48251.jpg) NF stage 13 to NF stage 21 Luo, et al. 2003
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-135495.jpg) NF stage 13 to NF stage 21 Bae, et al. 2015
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-174950.jpg) NF stage 13 to NF stage 21 Buitrago-Delgado, et al. 2018
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-48145.jpg) NF stage 22 Tazumi, et al. 2010
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-76433.jpg) NF stage 22 Pieper, et al. 2012
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-26071.jpg) NF stage 13 to NF stage 23 Rogers, et al. 2009
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-46457.jpg) NF stage 17 to NF stage 23 Saint-Germain, et al. 2004
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-154159.jpg) NF stage 14 to NF stage 23 Neilson, et al. 2017
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-40650.jpg) NF stage 22 to NF stage 24 Hwang, et al. 2009
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-80783.jpg) NF stage 24 O'Donnell, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-149010.jpg) NF stage 25 Zhao, et al. 2016
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-24067.jpg) NF stage 26 Kuriyama, et al. 2006
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-41488.jpg) NF stage 26 Casini, et al. 2010
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-47200.jpg) NF stage 26 Reisoli, et al. 2010
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-172700.jpg) NF stage 26 Figueiredo, et al. 2017
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-48137.jpg) NF stage 16 to NF stage 27 Tazumi, et al. 2010
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-48142.jpg) NF stage 22 to NF stage 27 Tazumi, et al. 2010
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-48143.jpg) NF stage 27 Tazumi, et al. 2010
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-23197.jpg) NF stage 28 Light, et al. 2005
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-23918.jpg) NF stage 28 Nichane, et al. 2008
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-43515.jpg) NF stage 28 Nardini, et al. 2004
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-46915.jpg) NF stage 18 to NF stage 28 Taylor, et al. 2005
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-47205.jpg) NF stage 28 Reisoli, et al. 2010
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-76259.jpg) NF stage 28 Nichane, et al. 2008
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-138472.jpg) NF stage 28 Griffin, et al. 2015
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-149044.jpg) NF stage 28 Macrì, et al. 2016
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-149698.jpg) NF stage 28 Devotta, et al. 2016
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-153736.jpg) NF stage 20 to NF stage 28 Lee, et al. 2011
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-154162.jpg) NF stage 28 Neilson, et al. 2017
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-180451.jpg) NF stage 24 to NF stage 28 Sullivan, et al. 2019
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-180454.jpg) NF stage 24 to NF stage 28 Sullivan, et al. 2019
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-188979.jpg) NF stage 29 and 30 Schwenty-Lara, et al. 2021
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-985.jpg) NF stage 14 to NF stage 32 Luo, et al. 2007
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-24414.jpg) NF stage 10.5 to NF stage 32 Spokony, et al. 2002
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-76463.jpg) NF stage 32 Janesick, et al. 2012
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-78173.jpg) NF stage 14 to NF stage 32 Aoki, et al. 2003
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-180798.jpg) NF stage 28 to NF stage 32 Shah, et al. 2020
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-48768.jpg) NF stage 33 and 34 Kerney, et al. 2007
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-134732.jpg) NF stage 33 and 34 Square, et al. 2015
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-189984.jpg) NF stage 28 to NF stage 33 and 34 Neilson, et al. 2020
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-1253.jpg) NF stage 14 to NF stage 35 and 36 O'Donnell, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-135544.jpg) NF stage 26 to NF stage 35 and 36 Tae, et al. 2015
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-153733.jpg) NF stage 17 to NF stage 35 and 36 Lee, et al. 2011
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-154160.jpg) NF stage 33 and 34 to NF stage 35 and 36 Neilson, et al. 2017
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-134737.jpg) NF stage 35 and 36 to NF stage 37 and 38 Square, et al. 2015
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-171106.jpg) NF stage 37 and 38 Rankin, et al. 2018
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-40823.jpg) NF stage 39 Lee, et al. 2009
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-76559.jpg) NF stage 40 Gersch, et al. 2012
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-87065.jpg) NF stage 25 to NF stage 40 Lee, et al. 2003
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-87067.jpg) NF stage 31 to NF stage 40 Lee, et al. 2003
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-911.jpg) NF stage 31 to NF stage 41 Kerney, et al. 2007
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-912.jpg) NF stage 33 and 34 to NF stage 41 Kerney, et al. 2007
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-40824.jpg) NF stage 41 Lee, et al. 2009
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-76250.jpg) NF stage 37 and 38 to NF stage 41 Casini, et al. 2008
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-79529.jpg) NF stage 35 and 36 to NF stage 41 Suzuki, et al. 2012
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-83206.jpg) NF stage 35 and 36 to NF stage 42 Chang, et al. 2013
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-83207.jpg) NF stage 35 and 36 to NF stage 42 Chang, et al. 2013
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-2884.jpg) NF stage 13 to NF stage 44 Saint-Germain, et al. 2004
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-40821.jpg) NF stage 39 to NF stage 45 Lee, et al. 2009
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-40825.jpg) NF stage 45 Lee, et al. 2009
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-41345.jpg) NF stage 15 to NF stage 45 Park, et al. 2010
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-87066.jpg) NF stage 42 to NF stage 45 Lee, et al. 2003
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-137971.jpg) NF stage 51 Satoh, et al. 2005
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-76952.jpg) NF stage 49 to NF stage 53 Love, et al. 2011
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-149415.jpg) NF stage 53 Hayashi, et al. 2015
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-40157.jpg) NF stage 53 to NF stage 54 Yakushiji, et al. 2009
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-43316.jpg) NF stage 52 to NF stage 54 Satoh, et al. 2006
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-43317.jpg) NF stage 53 to NF stage 54 Satoh, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-44514.jpg) NF stage 52 to NF stage 55 Satoh, et al. 2005
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-149412.jpg) NF stage 55 Hayashi, et al. 2015
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-43320.jpg) NF stage 54 to NF stage 58 Satoh, et al. 2006
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-49268.jpg) NF stage 57 to NF stage 58 Satoh, et al. 2005
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-133229.jpg) NF stage 35 and 36 to NF stage 59 Rankin, et al. 2015
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-35666.jpg) NF stage 55 to NF stage 60 Satoh, et al. 2005
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-174879.jpg) NF stage 50 to NF stage 60 Jones, et al. 2013
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-173392.jpg) NF stage 50 to NF stage 62 Piprek, et al. 2018
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-41783.jpg) NF stage 53 to NF stage 65 Ohgo, et al. 2010
| |
![Expression Image Expression Image](image/thumbnail/XB-IMG-26245.jpg) juvenile frog stage El Jamil, et al. 2008
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-49271.jpg) juvenile frog stage Satoh, et al. 2005
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-26246.jpg) adult frog stage El Jamil, et al. 2008
| ![Expression Image Expression Image](image/thumbnail/XB-IMG-155211.jpg) adult frog stage Tlapakova, et al. 2016
| | |