 |
 The Skeleton of a
Frog |
 The Internal Organs of
a Frog |
 Green
and Black Poison Dart Frog (Dendrobates
auratus) This
frog gets its poison from ants that have high
quantities of alkaloids in their tissues. Males
tend to eggs after laying, and then take tadpoles
to suitable places for development before
abandoning them. |
 Madagascar
Tomato Frog (Dyscophus
antongilii)
This is a rather large
frog, with females being 3-4 inches long and
weighing about 8 ounces. The back is uniformly
orange to red in color, the underside is
yellowish, and there may be black spots on the
throat. It is found only on the northeast coast
of Madagascar. |
 Puerto
Rican Crested Toad (Peltophyrne
lemur)
The only toad native to
Puerto Rico, this species is confined to that
island's Guanica National Forest. It is
distinguished by a high crest above the eyes and
a long, upturned snout. |
 Surinam Toad (Pipa
pipa) This unique-looking toad is distinguished
from other toads by its flat appearance,
triangular-shaped head, and small, star-like
appendages on its short, weak, unwebbed front
legs. n addition to its appearance, the Surinam
Toad also has a fairly unqiue method of
reproduction. |
 The
Crawfish Frog (Rana
areolata) is 2 to 3 inches long and is yellow to
brown in color, with an all-white belly and
numerous dark spots on the back, each with a
lighter-colored ring surrounding it. It spends
almost all of its adult life in a burrow and is
therefore rarely seen outside of the breeding
season. |
 The
Bullfrog (Rana
catesbeiana)
is the largest true frog in North
America, averaging 3½ to 6 inches in length, not
counting its legs, which average 7 to 10 inches
in length. While insects, earthworms and spiders
form a major part of the diet, bullfrogs are also
known to go after crayfish and other arthropods,
as well as snakes, rodents, and even birds. |
 The
Clawed Frog (Xenopus
laevis) is
about 4 inches long, with large females reaching
up to 5 inches. The back legs are long and very
muscular. The 3 inner toes on each back foot have
sharp black claws. |
