**All of those frogs are juveniles that are right out of the tadpole stage. This one is full grown...

ELEUTHERODACTYLUS FROG (Eleutherodactylus iberia)
**The Northern Hemisphere's smallest frog has no common name and hops around the moist forests and swamps of Cuba's Monte Iberia. Discovered in the 1990s, the tiny amphibian fits neatly on a dime -- and its name, when typed out, is actually longer than the frog itself! Researchers say the discovery shows that many Cuban species remain to be classified. Perhaps there is even a smaller frog somewhere on the island. (Discover other Eleutherodactylus frogs in the Species Guide.)