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Transgenic froglets overexpressing PRL. (A and B) Representative oPRL transgenic froglets at the end of metamorphosis. (C and D) Representative xPRL transgenic froglets at the end of metamorphosis. (E) Dorsal view of an oPRL tailed frog 3 months after metamorphosis. (F) Side view of the animal shown in E. Note the huge fibrotic fins that have grown since metamorphosis. The scale bars equal 1 cm. A–D have the same magnification; E and F have the same magnification.
