Frog life cycle with scientific name and facts


Frog life cycle

Frog life cycle with scientific name and facts


Table of Content
With amphibians being the first vertebrates on the planet earth, there are more than 5,000 frog species. Scientifically, these are known as Anura. If you are fascinated about the frog facts and all about them, then here is the complete article to help you in that. Their reproduction is one of the most interesting processes, in which the vertebrates undergo metamorphosis and remarkable changes throughout their life cycle, similar to the species of invertebrates. Read the article to know about the frog life cycle along with different types that exist on planet Earth.

Frogs are amphibians which means that they are adapted to live both on land as well as water. During their metamorphosis stages of its life cycle, they live in water until they are fully grown into adult. The two major hormones that control the metamorphosis process in them are the prolactin and thyroxine. These two hormones majorly control the transformation of the eggs into larva and then to adults.

There are major three stages of a frog during their life cycle: egg, larva, and adults.

Here is the complete frog life cycle, let us have a deeper look into the process. All the information is covered in this segment:

Breeding: In general, their mating season is during the spring season in temperate climates and in rainy season for tropical climates. The noises that you might have heard at the time, are the croaking calls that are made by the males to attract their female partners. The male fertilizes the eggs laid by the female by taking an amplexus position.

Stage 1: Egg

Most of the frog species lay their eggs in the calm waters, where the safety of the eggs is ensured. The eggs are laid in a group and these are collectively known as spawn. These fertilized eggs when matures, the yolk in each egg will divide into more cells and take the form of tadpole within 1-3 weeks of the time period.

Stage 2: Tadpole (larva)

Tadpoles are the larva stage of the frogs which have rudimentary gills, mouth and a long tail. During the first week, the tadpole gets its nutrition from the yolk of the eggs hatched. After that, the tadpoles feed on the algae to get the nutrition and as they grow their diet shifts to larger plant materials and even insects. They develop hind limbs and the body gets elongated. In the later stage of development, the front limbs grow and the tails get shrunk. Skin gets formed over the gills.

Stage 3: Adult frog

Approximately after 12 weeks of age, the gills of the tadpole and the tail are fully absorbed in the body, which means that the frog has fully grown into the adult. By this time, the fully grown adult  is ready to venture out on the dry land and repeat the life cycle.

So, in this way, their reproduction continues to go on. As there is diversity on the planet, there are more than 5,000 species on our planet. And you will be surprised to know about the various frog facts of the particular species.

- Red eyed frog: The scientific name for this species id Agalychnis callidyras. This is the native species of Southern Mexico to Northern South America. This species is known for the neon green body and the red eyes are its telltale with the bright orange or the reddish feet, the neon green body is accented with the vertical blue and yellow stripes on the sides. This is commonly known as the monkey frog because of the huge webbed feet which provide a secure grip as it climbs the trees.

- Goliath frog: This is another amazing species. Conraua goliath, is the scientific name for this species and is around 6.5 to 12.5 inches in length. The rare characteristics that this species holds is the larger size of the male frog than its female counterparts. Also, they lack the vocal sacks and make the sound of whistling for their mating call. This is the largest frog in the world.

- Tree frogs: These are quite smaller in size, so small that they can easily sit on the fingertips of the humans. Their most of the time of life cycle is spent on trees and they have roundish feet, which give off a gluey liquid and help them in clinging to the trees. These are also known as the chorus frogs. The tree frog sounds at night are really a nuisance to humans.

- Wood frogs: Wood Frog is one of the rarest species that can be found only in Alaska and above the arctic circle. These can freeze but do not die and. so, if you are wondering, do frogs hibernate, then yes, this is the species that undergoes hibernation when the temperature drops.

- American bullfrog: American Bullfrog is named because of the resemblance of its baritone call to the mooing of a cow. One can hear their chorus that can be heard during day and night “jug-o-rum”.

- Tomato frog: Tomato frog look much like a big and ripe tomato. Females are much brighter and the largest individuals of this species. These secrete a glue like substance when threatened as a deterrent method to its predators.

- Glass frog: This species is generally found in the New World tropics and the interesting thing about them is their transparent bellies. Their viscera are visible and this is the reason why observers can see their heart pumping the blood. Thus, it got its name - a glass frog!

- Rain frog: Rain Frog are the grumpiest and the cutest species ever on the planet. They have bulging eyes with plump bodies and short limbs.

- Common frog: Rana temporaria is the scientific name of the common frog that is found in colors ranging from grey to olive green and yellow to brown. These are active at night mostly and they can breathe through their lungs as well as through the skin.

After knowing about all these species, you must be wondering if the frog species are poisonous? Then yes, there are some poisonous species as well on the planet and here are some of them:

- Blue poison dart frog: The frog looks unquestionably beautiful just like sapphire and this treasure of nature is found only in the tropical forests that border the Sipaliwini savanna and extend into northern Brazil. They secrete the toxic substance through its skin. Every individual has a distinct pattern of the black spots on their body which acts as their fingerprint.

- Dart frogs: These are the members of the family dendrobatidae, and their coloring can be varying from yellow, copper, gold, copper, red or black. This includes one of the deadly toxic species: golden poison frog that is indigenously found in Colombia.

Golden poison Scientific name: Phyllobates terribilis
Golden poison Class: Amphibia

One of the major confusion that we have is between the toads and the frog. Though both are amphibians and look quite similar in many ways there are some differences as well. You can have the frog vs toad comparison here:

  • The major time of the frogs is spent near the water while toads get out of the land and find their way into the gardens and yards.
  • The skin of the frogs is moist while that of toads is dry and bumpy
  • The eggs of frogs are in masses while that of toads are in chains.

Toads are generally similar to the frogs but their differentiation is also quite easy. The common toad species are as:

- Common midwife toad: These are found in Europe and the amazing fact about this species is the egg laying pattern. The female lays the eggs on the male in a string. The male partner guards the eggs against the predators till they hatch. Another quite interesting fact about these toads is their bigger size when they are in danger. On threatening, they puff themselves with air and become as big as it can. It stands as tall as possible by pushing all the four legs.

- European fire-bellied toads: These are found in wild Europe and are brown in color with brown splotches on their back which help them in camouflage. They have brightly colored red bellies and hence they got their name fire bellied. They have the poisonous slime that warns the predators to not to eat them. Thus the answer to your question or the thoughts of are toads poisonous is clarified here.

Some amazing facts about the frogs:


  • Frogs are the amphibians and thus, their habitat includes both lands as well as water. The nose and the eyes are located on the top of the head which helps in watching and breathing even if most of the body is in water.
  • If you have been wondering, what sound does a frog make, then it is croaking. The sound that is used by them to attract their female partners at the time of the breeding season.
  • The biggest frog in the world is the goliath frogs, Goliath frogs can grow as large as the size of some house cats and can weigh up to 3.3 kilograms. Goliath frogs are mute and known as the giant slippery frogs.
  • Toad frog exists! Toads are the type of frogs, which means that all toads are frogs but all frogs are not toads.
  • If you wonder about the sleeping frogs, then this cannot be confirmed as there has not been sufficient research done on the sleeping patterns of the frogs.
  • One can find a large variety of colorful frogs and this is the beauty of this species. These can be found in various colors and designs on their body and that is why they are one of the most attractive species on the planet.

Circulation in frogs

As the Circulatory system of a frog is closed, they have a three-chambered heart and there is only heart present for pumping the blood, throughout the body. There are two atria and a single ventricle for the blood circulation. The deoxygenated blood from the veins is received by the right atrium and the lungs the oxygenated blood is received by the left atrium. There are chances of the mixing of the oxygenated and deoxygenated blood in the ventricle. As human circulation follows two circuits, frogs have three circulation circuits. The pulmonary circuit to circulate the blood to the lungs to get the oxygen. There is also a pulmocutaneous circuit present for the exchange of the gases through skin.

How to get a frog out of your house?

Frogs are generally found near the water places where they can breed. If you have a garden, then yes you can have them in your home and in the garden. The noises made by them can be irritating to you and thus, you would wish to get rid of them.
Try the following methods to get rid of the frogs form your home:

  • Spread the coffee or salt on the ground or the floor of the house.
  • You can try making a frog repellent spray by mixing some water and vinegar
  • Citric acid mixed with water can be also a good means of repelling the frogs.

If natural methods do not work, then you may try to use some chemicals methods to get rid of the frogs:

Heat: This is considered to be the frog killer! Not exactly it kills them, but it will dry up the eggs and tadpoles and thus, you will get some relief from the menace.

Herbicides: You can use some herbicides as well as pesticides.

You can easily get to know the frog infestations in your home by their sounds. If do not know what they sound like, then try to hear some different sounds like croaking from your lawn or pool at night. You can then easily get rid of the frogs with these methods or else you can hire a exterminator to help you. These are some of the interesting frog facts for kids, which will help them in understanding the life cycle of a frog.

Hope you found all the info about frog life cycle, common toad, facts with scientific name, are toads poisonous, frog reproduction and types these all information are useful for your kids.