Internal fertilization in an oviparous frog

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Science  24 Apr 1981:
Vol. 212, Issue 4493, pp. 469-471
DOI: 10.1126/science.6894203


Eleutherodactylus coqui, an oviparous frog, undergoes internal fertilization. If this mode of fertilization occurs in other species of anurans, interpretations of anuran reproductive strategies based on the assumption of external fertilization must be reviewed.