Department of Natural Resources
About Frogs !
Frog | Spring Peeper | Pickerel
Frog | Wood Frog | Blanchard
Cricket Frog | Gray Frog |
Green Frog | Leopard
Frog | Bullfrog | American
Illinois Frog and Toad Facts
toads do not cause warts.
Illinois anuran is the bullfrog, Rana catesbeiana,
which can attain a snout-to-vent length of 15 cm (6 inches).
Illinois anuran is the cricket frog, Acris
crepitans, which averages 2 cm (1 inch) snout-to-vent length.
frog can leap a distance equal to ten times its body length.
frogs dig with their hind legs, but the Illinois chorus
frog, Pseudacris streckeri illinoensis, is one of only a
few burrowing species that digs with its front legs.
of the eastern narrowmouth toad, Gastrophryne carolinensis, consists
almost exclusively of ants.
tongue of frogs and toads is folded in half when stored in the mouth.
When extended for capturing prey, the tongue unfolds and is flipped out
rather than being cast out straight.
chorus frog, Pseudacris streckeri illinoensis, can hunt for food
while it is underground. It probably eats a variety of insect larvae,
such as cutworms (moth larvae), that it finds in its sandy burrows.
Rana catesbeiana, are famous for their incredible eating habits.
They will attempt to eat anything that moves -- that they can at least
partially swallow. They have been known to eat baby ducks, small mammals,
other bullfrogs, and snakes.
of Illinois have a sticky cup at the end of each toe that allows them
to climb vertical surfaces such as windows and tree trunks. Treefrogs
may be found in branches more than fifty feet off the ground.
bullfrog, Rana catesbeiana, can lay over 20,000 eggs in a thin
film measuring two feet by two feet.
frogs, such as the wood frog, Rana sylvatica, accumulate glycerol
in their body tissues. The glycerol acts as an antifreeze, allowing them
to survive subfreezing temperatures.