Some records show that in captivity, many species of frogs and toads can live for surprisingly long times. They seem generally average somewhere between 4 and 15 years!
Most frogs do in fact have teeth of a sort. They have a ridge of very small cone teeth around the upper edge of the jaw.
The biggest kind of frog is the Goliath frog (Conraua goliath). Their bodies can reach the size of nearly a foot (30 cm) long.(remember: their legs are also AT LEAST that long!!!!)
Some frogs have tongues that are long and sticky that can be used to catch bugs. These roll out like an upside-down party horn and snap at the bug!
The smallest frog in the Southern Hemisphere is the Gold Frog, or Brazilian Psyllophryne Didactyla . Adult Gold Frogs measure grow to only 9.8 millimetres in body length (with legs drawn in). That's about one centimeter or about 3/8 of an inch!
The Catholic frog (Notaden bennetti) is a yellow or greenish Australian myobatrachid which gets to be about 4 cm (1.5 inches) long. It was named for the dark, crosslike pattern on its back, and it lives in dry regions. The way it copes with drought is to live underground, emerging from its burrow after a heavy rain.
Frogs that live in cold regions can't be active year round. When the weather gets cold their bodies cool down and they can't move. As the temperature drops, frogs burrow a little ways under forest leaves (so they won't freeze to death), and go into hibernation until the weather gets warm again.
http://www.teachertube.com/view_video.php?viewkey=fbd11070bdb7991ba378 When a frog swallows a meal, his bulgy eyeballs will close and go down into his head! This is because the eyeballs apply pressure and actually push a frog's meal down his throat! *GULP*