Glossary
 Frog Tetradactyl Revealing Paws
Tetradactyl Frog

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Tetradactyl
Having four digits (fingers, toes) on a limb.
Many amphibians and birds are tetradactyl.
Cf.
Pentadactyl
Tridactyl
Didactyl
Monodactyl  

Bird Tracks In Snow

Tetradactyl Bird Tracks in Snow