This track was found in fine river silt along the Eel River near Redway, California.
This is the left hind track of a yellow-legged frog (Rana boylii). The tips of the toes are not globular or bulbous like those of the Pacific treefrog (Pseudacris regilla). Pacific treefrogs have toe pads on the tips. Yellow-legged frogs have toes that are more pointed than those of the Pacific treefrog. Penny for scale is 1.9 cm (3/4 in.) across.
Kim Cabrera (photographer; copyright holder; identification)
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