Wood Frog

The wood frog lives the furthest north of any other North American amphibian including in the Arctic Circle.
Wood Frog Scientific Classification
Scientific name
Lithobates sylvaticus
Wood Frog Physical Characteristics
Brown, Grey, Red, Green
While there are no estimates of the global population size, the overall population is stable.
Three years
0.28 ounces
Wood Frog Distribition

Did you understand that the wood frog lives the outermost north of any kind of various other North American amphibian consisting of right into the Polar circle?

The wood frog has actually obtained scientific focus over the last century as a result of its terrestrial, environment organizations, freeze resistance, and long- array activities. The wood frog is the suggested New york city State main amphibian. For more information concerning the information of the wood frog, maintain checking out!

5 Extraordinary Wood Frog Truths!

  • Logging endangers the all-natural environment of some wood frogs although the populace is not presently under risk.
  • Belonging to woodlands including swimming pools of water.
  • Scientific name is Lithobates sylvaticus from the Ranidae family.
  • They closed down throughout cold wintertime temperature levels and can make it through cold and thawing as a result of the web content of urea and sugar in their system.
  • Wood frogs expand in between 1.5 and 3 inches long and discourage predators with their raucous sounds and poisonous substance glands.

Wood Frog Scientific Name

Wood frogs drop in the Animalia kingdom, Chordata phylum, Amphibia class, Anura order, Ranidae family, Lithobates genus. Their scientific name is Lithobates sylvaticus which implies in the middle of the trees. Lithobates is Greek for “a rock” (Litho) and “one that strolls or pursues” (bates). Sylvaticus is a Latin word for “in the middle of the trees.”

Wood Frog Appearance and Habits

Wood frogs are typically around 3 inches lengthy and attribute corrosion red, brownish, grey, or tan skin with bumps. One of the most well-known attribute of the wood frog is the black “burglar’s mask” on its face and the yellow to green- white stubborn belly with a red stripe on its top lip. Offered their shade, wood frogs often tend to assimilate well with their environments, specifically in the woodland.

These frogs generally go back to the very same fish ponds to reproduce yearly and move within the very same location their whole lives. While they collect in lots throughout breeding period at reproduction swimming pools, they are mainly singular animals.

Wood frog sitting on some moss
Francis Manager / Shutterstock.com

Wood Frog Environment

These frogs reside in fish ponds, marshes, and woodlands varying from as much north as the Polar circle to as much southern as Alabama yet are mainly located in Alaska. Grown-up Alaskan frogs invest the summertime in wet forests, gorges, bogs, and forested swamps. In the loss, Alaskan frogs move to close-by uplands with some staying in wet locations throughout the wintertime. Wood frogs are diurnal and hardly ever seen throughout the nighttime hrs, other than to reproduce. In the wintertime, they ice up till their heart quits after that rethaw in the springtime. A team of Alaskan frogs is called a military and a team of young frogs swims with each other in institutions, like fish.

Wood Frog Predators & Threats

What Consumes a Wood Frog?

Grownup frogs have countless predators consisting of Gartner snakes, water snakes, ribbon snakes, bigger frogs, herons, skunks, mink, and raccoons. Snakes can creep up on these frogs ashore or in water and rapidly eat them entire. Traveling and land animals can just assault wood frogs while they are wandering ashore or near the side of the water. Tadpoles are consumed by diving beetles, Ambystoma salamander larvae, and water bugs. Tadpoles are recorded undersea or as they emerge by these predators Additionally, as logging and the draining pipes of fish ponds proceeds by humans, whole populaces of wood frogs in some locations are ending up being non- current. Generally, there is no present endangerment to wood frogs.

What Does a Wood Frog Eat?

Grownup frogs eat on arachnids, slugs, worms, snails, and insects by capturing them with their sticky and lengthy tongues. Tadpoles eat decomposing plant issue and algae, in addition to the larvae or eggs of various other amphibians.

Recreation, Infants, and Life-span

Mating Routines and Pregnancy Duration

This frog’s breeding period takes place in the springtime when hundreds of wood frogs come down on fresh swimming pools. Males look for females and hold to them from behind in a placement called amplexus. Males can not recognize females by scent or view so they need to hug prospective companions. The female really feels fatter than the male since she is bring hundreds of eggs. Some males make errors and have actually tried amplexus with various other frog species, toads, and salamanders. Males occasionally hold on to each various other and type lengthy chains of a solitary female with several males that hold on to the male ahead.

Amplexus boosts egg laying so as quickly as the eggs are launched, they start to swell, and the male needs to feed the eggs quickly prior to they inflate. As a result, the initial male in the chain feeds the eggs and will not release the female frog till all eggs are launched which starts the young frog’s life process. Throughout this whole procedure, males can be listened to making a quack- like phone call all the time. This is considered their breeding contact us to lure females right into recreation. This is a special phone call that is various from the normal audios frogs make. The gestation duration takes place in between 9 and 1 month from fertilizing. Among one of the most intriguing realities is the female can disable to 1,000 eggs, causing thousands of tadpoles that make it through.


Instantly after hatching out, tadpoles are black and just a quarter of an inch long. They generally continue to be near to the egg mass for a couple of days to forage on cooperative algae prior to swimming about in the swimming pool. Along with algae and various other little plants, wood frog tadpoles additionally eat larvae and the eggs of various other amphibians, consisting of various other wood frogs. Among the best safety benefits of a tadpole is its capability to swim rapidly to escape predators Additionally, they can take a breath undersea considering that they are birthed with gills. Surprisingly, tadpoles can compare shades and comply with revolving patterns yet do not have the most effective view.


The typical age of the male and female frog is around 3 years.


There have actually been no considerable adjustments in the wealth or distribution of these frog populaces throughout the years. Nevertheless, some locations have actually seen a populace decrease as a result of the draining pipes of reproducing fish ponds and removal of woodland environments. The complete populace of wood frogs worldwide is unidentified.


  1. National Wildlife Federation, Available here: https://www.nwf.org/educational-resources/wildlife-guide/amphibians/wood-frog
  2. Wikipedia, Available here: https://en.wikipedia.org/wiki/Wood_frog
  3. Animal Diversity Web, Available here: https://animaldiversity.org/accounts/Lithobates_sylvaticus/
  4. Bio Kids, Available here: http://www.biokids.umich.edu/critters/Lithobates_sylvaticus/
  5. IUCN Redlist, Available here: https://www.iucnredlist.org/species/58728/78907321

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