Upper Midwest Environmental Sciences Center
Farm ponds as critical habitats for
native amphibians
A Field Guide to Amphibian Larvae and Eggs of Minnesota, Wisconsin,
and Iowa
Field guide contents
Figure 1. Egg masses of amphibians; (a) a thin raft of eggs (e.g., Green Frog), (b) a globular cluster of eggs (e.g., Leopard Frog), (c) eggs laid singly or in small clusters (e.g., Chorus Frog), (d) eggs laid in strings (e.g., toads).
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