Anura, comprised of frogs or toads, is the most diverse of the three existing amphibian orders. There is no formal distinction between frogs and toads, just that toads are typically a more warty frog species. Frogs live in every biome except in extremely dry deserts and polar regions, however, their species diversity is most abundant in the tropics. Frogs are typically carnivores though some eat fruit, and all adult frogs, except one species, do not have tails—thus where the the name Anura, meaning “without tail,” came from. There are about 4,000 different species of frogs with the earliest known fossils dating back to the Jurassic period.

What do frogs eat?

Frogs are carnivores. A smaller frog’s diet consists of insects like flies, mosquitoes, moths, spiders, and dragonflies. Larger frogs also eat insects like grasshoppers, butterflies, and worms, and may even eat small snakes, mice, baby turtles, and other smaller frogs.

How do frogs reproduce?

Frogs reproduce by the male and female frog getting into the mating posture, amplexus, to make sure the eggs become fertilized. Egg fertilization happens outside of the female’s body when she releases her eggs and the male releases his sperm at the same time. The eggs are then placed in water and will hatch into tadpoles which later become frogs.

Why do frogs croak?

In almost all frog species it is the males that croak and they do so to attract female frogs. Males frogs tend to croak while they are in or near a water source (ponds, dams, streams, or wetlands) with the intention of mating. Each frog species has a different croak and can be identified by it.

Frogs Guides
Browse through our curated Frogs Guides for additional categorizations, tips, details, variations, styles, and histories of Frogs. Guides provide additional insights into the unique properties and shared relationships between elements.
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.67”-1.02” | 1.7-2.6 cm
.83”-1.34” | 2.1-3.4 cm
2”-3” | 5.1-7.6 cm
.05-.07 oz | 1.5-2 g
8-15 years
African Dwarf Frog
2.600
3.400
7.600
0.002
15.00
36800
3D
African Dwarf Frog
1.65”-2.56” | 4.2-6.5 cm
1.14”-1.85” | 2.9-4.7 cm
2.5”-4” | 6.4-10.2 cm
.14-.18 oz | 4-5 g
5-10 years
Amazon Milk Frog
6.500
4.700
10.200
0.005
10.00
18400
3D
Amazon Milk Frog
2.24”-3.9” | 5.7-9.9 cm
1.69”-2.87” | 4.3-7.3 cm
3.5”-6” | 8.9-15.2 cm
1-1.8 lb | .45-.82 kg
7-16 years
American Bullfrog
9.900
7.300
15.200
0.820
16.00
19700
3D
American Bullfrog
.98”-1.73” | 2.5-4.4 cm
.67”-1.18” | 1.7-3 cm
1.5”-2.5” | 3.8-6.4 cm
.28-.32 oz | 8-9 g
10-20 years
Blue Poison Dart Frog
4.400
3.000
6.400
0.009
20.00
9500
3D
Blue Poison Dart Frog
1.97”-3.27” | 5-8.3 cm
1.73”-2.87” | 4.4-7.3 cm
3”-5” | 7.6-12.7 cm
.7-2.8 oz | 20-79 g
10-40 years
Common Toad
8.300
7.300
12.700
0.079
40.00
19400
3D
Common Toad
1.3”-1.65” | 3.3-4.2 cm
.79”-1.02” | 2-2.6 cm
1.75”-2.2” | 4.4-5.6 cm
.5-1 oz | 14-28 g
10-20 years
Golden Poison Frog
4.200
2.600
5.600
0.028
20.00
13800
3D
Golden Poison Frog
4.13”-7.91” | 10.5-20.1 cm
4.69”-8.82” | 11.9-22.4 cm
6.7”-12.6” | 17-32 cm
7-7.4 lb | 3.2-3.4 kg
15-21 years
Goliath Frog
20.100
22.400
32.000
3.400
21.00
25200
3D
Goliath Frog
.94”-1.57” | 2.4-4 cm
1.06”-1.81” | 2.7-4.6 cm
1.8”-3” | 4.5-7.6 cm
.05-.07 oz | 1.5-2 g
5-6 years
Mink Frog
4.000
4.600
7.600
0.002
6.00
1210
3D
Mink Frog
.98”-2.24” | 2.5-5.7 cm
.87”-2” | 2.2-5.1 cm
2”-4.5” | 5.1-11.4 cm
.75-1 oz | 21-28 g
3-9 years
Northern Leopard Frog
5.700
5.100
11.400
0.028
9.00
5090
3D
Northern Leopard Frog
.8”-1.57” | 2-4 cm
.67”-1.34” | 1.7-3.4 cm
1.75”-3.5” | 4.4-8.9 cm
.09-.12 oz | 2.5-3.5 g
5-8 years
Pickerel Frog
4.000
3.400
8.900
0.004
8.00
5820
3D
Pickerel Frog
1.22”-1.77” | 3.1-4.5 cm
.91”-1.5” | 2.3-3.8 cm
2”-3” | 5.1-7.6 cm
.2-.5 oz | 2.8-14 g
4-12 years
Red-Eyed Tree Frog
4.500
3.800
7.600
0.014
12.00
34300
3D
Red-Eyed Tree Frog
.51”-.87” | 1.3-2.2 cm
.43”-.71” | 1.1-1.8 cm
.8”-1.3” | 2-3.3 cm
.1-.2 oz | 2.8-5.7 g
2-3 years
Spring Peeper
2.200
1.800
3.300
0.006
3.00
9050
3D
Spring Peeper
.71”-1.42” | 1.8-3.6 cm
.55”-1.14” | 1.4-2.9 cm
1.4”-2.8” | 3.6-7.1 cm
.3-.5 oz | 8.5-14 g
3-5 years
Wood Frog
3.600
2.900
7.100
0.014
5.00
16150
3D
Wood Frog
Blue Poison Dart Frog (Dendrobates tinctorius)
Scale illustration of an average Blue Poison Dart Frog compared to other frog species

The blue poison dart frog, Dendrobates tinctorius ”azureus”, is a poison dart frog that lives in the forests surrounded by the Sipaliwini Savanna in northern Brazil. They are a mainland animal, but stay close to water sources. Its bright blue skin is darker around its limbs and stomach, and it serves as a warning to predators. The glands of poisonous alkaloids is also another defense mechanism, as it paralyzes, and can sometimes kill, a predator. They hop around in short leaps, and they can be very territorial and aggressive to their own species and others. Their diet consists of ants, beetles, flies, mites, spiders, termites, maggots, and caterpillars.

The Blue Poison Dart Frog has an overall length between 1.5”-2.5” (3.8-6.4 cm), body width of .67”-1.18” (1.7-3 cm), sitting height of roughly .98”-1.73” (2.5-4.4 cm), and weight between .28-.32 oz (8-9 g). The typical lifespan of the Blue Poison Dart Frog is between 10-20 years.

Series of top and side view illustrations of the Blue Poison Dart Frog
The blue poison dart frog, Dendrobates tinctorius ”azureus”, is a poison dart frog that lives in the forests surrounded by the Sipaliwini Savanna in northern Brazil. They are a mainland animal, but stay close to water sources. Its bright blue skin is darker around its limbs and stomach.

The Blue Poison Dart Frog has an overall length between 1.5”-2.5” (3.8-6.4 cm), body width of .67”-1.18” (1.7-3 cm), sitting height of roughly .98”-1.73” (2.5-4.4 cm), and weight between .28-.32 oz (8-9 g). The typical lifespan of the Blue Poison Dart Frog is between 10-20 years.

Series of top and side view illustrations of the Blue Poison Dart Frog
Blue Poison Dart Frog (Dendrobates tinctorius)
Height:
.98”-1.73” | 2.5-4.4 cm
Width:
.67”-1.18” | 1.7-3 cm
Length:
1.5”-2.5” | 3.8-6.4 cm
Depth:
Weight:
.28-.32 oz | 8-9 g
Area:
Scientific Name
Dendrobates tinctorius
Lifespan
10-20 years

Drawings include:

Blue Poison Dart Frog side elevation, front, plan

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Golden Poison Frog (Phyllobates terribilis)
Comparison drawing of the Golden Poison Frog compared to other frogs

The golden poison frog, Phyllobates terribilis, is a poison dart frog that lives in the humid forest of the Pacific coast of Colombia in the Cauca and Valle del Cauca Departments in the Choco Rainforest. Due to destruction of the rainforests, the habitat is limited in size, and the golden poison frog is on international endangered species lists. They are small in size and bright in color, but they are lethally toxic. Their main source of food are ants, but they also eat small invertebrates and other insects. Local indigenous cultures use the frogs’ poison in darts for hunting.

The Golden Poison Frog has an overall length between 1.75”-2.2” (4.4-5.6 cm), body width of .79”-1.02” (2-2.6 cm), sitting height of roughly 1.3”-1.65” (3.3-4.2 cm), and weight between .5-1 oz (14-28 g). The typical lifespan of the Golden Poison Frog is between 10-20 years.

Set of scaled top view drawings of the Golden Poison Frog
The golden poison frog, Phyllobates terribilis, is a poison dart frog that lives in the humid forest of the Pacific coast of Colombia in the Cauca and Valle del Cauca Departments in the Choco Rainforest. Due to destruction of the rainforests, the golden poison frog is international endangered.

The Golden Poison Frog has an overall length between 1.75”-2.2” (4.4-5.6 cm), body width of .79”-1.02” (2-2.6 cm), sitting height of roughly 1.3”-1.65” (3.3-4.2 cm), and weight between .5-1 oz (14-28 g). The typical lifespan of the Golden Poison Frog is between 10-20 years.

Set of scaled top view drawings of the Golden Poison Frog
Golden Poison Frog (Phyllobates terribilis)
Height:
1.3”-1.65” | 3.3-4.2 cm
Width:
.79”-1.02” | 2-2.6 cm
Length:
1.75”-2.2” | 4.4-5.6 cm
Depth:
Weight:
.5-1 oz | 14-28 g
Area:
Scientific Name
Phyllobates terribilis
Lifespan
10-20 years

Drawings include:

Golden Poison Frog side elevation, front, plan

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Northern Leopard Frog (Lithobates pipiens)
Comparison drawing of the Northern Leopard Frog compared to other frogs

The northern leopard frog, Lithobates pipiens, is a leopard frog native to Canada and parts of the US, and found in permanent ponds, swamps, marshes, and slow-moving streams in forests and open areas. In the summer they move to grassy areas and lawns. It is Minnesota and Vermont’s state amphibian. They are green to brown in dorsal color, with large, dark, circular spots on its back, sides, and legs; each spot is usually bordered by a lighter ring. Northern leopard frogs eat a wide variety of animals- crickets, flies, worms, and smaller frogs. They are preyed upon by many animals like snakes, raccoons, other frogs, and even humans.

The Northern Leopard Frog has an overall length between 2”-4.5” (5.1-11.4 cm), body width of .87”-2” (2.2-5.1 cm), sitting height of roughly .98”-2.24” (2.5-5.7 cm), and weight between .75-1 oz (21-28 g). The typical lifespan of the Northern Leopard Frog is between 3-9 years.

Set of scaled top view drawings of the Northern Leopard Frog
The northern leopard frog, Lithobates pipiens, is a leopard frog native to Canada and parts of the US, and found in permanent ponds, swamps, marshes, and slow-moving streams in forests and open areas. In the summer they move to grassy areas and lawns. It is Minnesota and Vermont’s state amphibian.

The Northern Leopard Frog has an overall length between 2”-4.5” (5.1-11.4 cm), body width of .87”-2” (2.2-5.1 cm), sitting height of roughly .98”-2.24” (2.5-5.7 cm), and weight between .75-1 oz (21-28 g). The typical lifespan of the Northern Leopard Frog is between 3-9 years.

Set of scaled top view drawings of the Northern Leopard Frog
Northern Leopard Frog (Lithobates pipiens)
Height:
.98”-2.24” | 2.5-5.7 cm
Width:
.87”-2” | 2.2-5.1 cm
Length:
2”-4.5” | 5.1-11.4 cm
Depth:
Weight:
.75-1 oz | 21-28 g
Area:
Scientific Name
Lithobates pipiens
Lifespan
3-9 years

Drawings include:

Northern Leopard Frog side elevation, front, plan

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Pickerel Frog (Lithobates palustris)
Scale illustration of an average Pickerel Frog compared to other frog species

The pickerel frog, Lithobates palustris, is a small North American frog known for its appearance of seemingly ”hand-drawn” squares on its dorsal surface; there are seven to twenty-one of these rectangular dark brown spots in two columns down its back. They like to live near cold and clear water, and prefer rocky ravines, bogs, and meadow streams, but they can also be found in heavily wooded lakes and rivers. Their diet consists of ants, spiders, beetles, sawfly larvae, and other invertebrates, and the pickerel frog will catch its prey in grassy areas next to bodies of water.

The Pickerel Frog has an overall length between 1.75”-3.5” (4.4-8.9 cm), body width of .67”-1.34” (1.7-3.4 cm), sitting height of roughly .8”-1.57” (2-4 cm), and weight between .09-.12 oz (2.5-3.5 g). The typical lifespan of the Pickerel Frog is between 5-8 years.

Series of top and side view illustrations of the Pickerel Frog
The pickerel frog, Lithobates palustris, is a small North American frog known for its appearance of seemingly ”hand-drawn” squares on its dorsal surface; there are seven to twenty-one of these rectangular dark brown spots in two columns down its back. They like to live near cold and clear water.

The Pickerel Frog has an overall length between 1.75”-3.5” (4.4-8.9 cm), body width of .67”-1.34” (1.7-3.4 cm), sitting height of roughly .8”-1.57” (2-4 cm), and weight between .09-.12 oz (2.5-3.5 g). The typical lifespan of the Pickerel Frog is between 5-8 years.

Series of top and side view illustrations of the Pickerel Frog
Pickerel Frog (Lithobates palustris)
Height:
.8”-1.57” | 2-4 cm
Width:
.67”-1.34” | 1.7-3.4 cm
Length:
1.75”-3.5” | 4.4-8.9 cm
Depth:
Weight:
.09-.12 oz | 2.5-3.5 g
Area:
Scientific Name
Lithobates palustris
Lifespan
5-8 years

Drawings include:

Pickerel Frog side elevation, front, plan

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Wood Frog (Lithobates sylvaticus)
Scale illustration of an average Wood Frog compared to other frog species

The wood frog, Lithobates sylvaticus or Rana sylvatica, is a frog found all over North America from the boreal forest of the north to the southern Appalachians. They have recently gained attention from biologists due to their freeze tolerance, various habitat associations, and long-range movements. They are ”obligate” breeders in ephemeral wetlands, as they are more endangered than the species that breed in them. Wood frogs eat small, forest-floor invertebrates and tadpoles consume an omnivorous diet- plant detritus and algae, eggs, and amphibians’ larvae. The wood frog has been proposed to be the official state amphibian of New York.

The Wood Frog has an overall length between 1.4”-2.8” (3.6-7.1 cm), body width of .55”-1.14” (1.4-2.9 cm), sitting height of roughly .71”-1.42” (1.8-3.6 cm), and weight between .3-.5 oz (8.5-14 g). The typical lifespan of the Wood Frog is between 3-5 years.

Series of top and side view illustrations of the Wood Frog
The wood frog, Lithobates sylvaticus or Rana sylvatica, is a frog found all over North America from the boreal forest of the north to the southern Appalachians. They have recently gained attention from biologists due to their freeze tolerance, various habitat associations, and long-range movements.

The Wood Frog has an overall length between 1.4”-2.8” (3.6-7.1 cm), body width of .55”-1.14” (1.4-2.9 cm), sitting height of roughly .71”-1.42” (1.8-3.6 cm), and weight between .3-.5 oz (8.5-14 g). The typical lifespan of the Wood Frog is between 3-5 years.

Series of top and side view illustrations of the Wood Frog
Wood Frog (Lithobates sylvaticus)
Height:
.71”-1.42” | 1.8-3.6 cm
Width:
.55”-1.14” | 1.4-2.9 cm
Length:
1.4”-2.8” | 3.6-7.1 cm
Depth:
Weight:
.3-.5 oz | 8.5-14 g
Area:
Scientific Name
Lithobates sylvaticus
Lifespan
3-5 years

Drawings include:

Wood Frog side elevation, front, plan

Details & Downloads

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