They are hermaphrodites, which means they have male and female organs
Earthworm Scientific Classification
Scientific name
Lumbricus Linnaeus
Earthworm Physical Characteristics
Brown, Grey, Red, White, Pink
very abundant
up to eight years
0.0088 ounces to 1.5 pounds
Earthworm Distribition

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” Powerful Little Planet Movers.”

Equally as bees are important to cross-pollinating blossoms, earthworms are important to having those blossoms expand to begin with. These worms freshen the dirt and permit oxygen, water, and nutrients to go into, which after that go into the origins of the plants. Their spreadings additionally obtain nutrients right into the dirt, and they can include 10 lots of their spreadings to the dirt in a year.

Various other earthworms could not reside in the dirt, however they aid damage down products that enter into manure and garden compost. They’re additionally great decomposers of dead animals. It would certainly be tough to preserve yards and ranches without them.

5 Extraordinary Earthworm Realities!

Below are some realities concerning this important invertebrate:

  • Earthworms twist when individuals choose them up due to the fact that the stress triggers their muscle mass to agreement, and the extremely salt in the individual’s skin is hazardous to them. Does this suggest it injures a worm to be grabbed?
  • There are 3 classifications. There are worms that do not obtain however reside in ground cover or garden compost. There are worms that prey on and delve right into dirt, and there are worms that dig deep burrows right into the dirt and concern the surface area to eat plant product.
  • The lengthiest ever before discovered belonged to the Amynthas mekongianus species. This 10- foot long worm was discovered on the sloppy financial institutions of southeast Asia’s Mekong River.
  • There have to do with 180 species of earthworm in the USA and Canada, and around 60 of them are intrusive.
  • Infant worms do not undertake any type of type of transformation such as that seen in amphibians and insects. They are small reproductions of their moms and dads and merely grow.

You can look into even more unbelievable realities concerning earthworms.

Scientific Name and Classification

Due To The Fact That there are a lot of species of earthworms there are numerous scientific names for them, and biologists placed much believed right into their classification. Biologists do concur that they come from the phylum Annelida, which suggests “little rings” in Latin, and to the Opisthopora order. This order has 8 households.


These worms have several of one of the most recognizable compositions of all invertebrates. That hasn’t seen the lengthy fractional, slimed pink, grey or brownish cyndrical tube (squeezed at both ends) that is an earthworm? Yet if you check out it via a magnifying glass, you could see that its sectors, conserve its front and back, are covered with rows of small hairs called setae. These aid steady the animal as it relocates and slow when it friends. The variety of sectors the worm has depends upon its species.

The mouth is additionally safeguarded from consuming undesirable dirt by a flap called a prostomium. The prostomium additionally assists the worm feeling and feeling where it is. Some worms utilize this framework to get hold of onto plant life and bring it right into their burrow to eat. Incidentally, the worm does not have teeth though it has a solid mouth packed with muscle mass to press its food right into its gastrointestinal system.

Earthworms do not have ears and eyes, however they can still notice their setting. They can notice light via frameworks called the Light cells of Hess, and receptors that can notice resonances, touch, preference, and odor.

An individual will certainly additionally discover that the worm has swelling over a few of its sectors near the front. This is the clitellum, and it houses the animal’s reproductive system. The rear of the body is typically round however it can be various forms depending upon the species. The cyndrical tube’s last sector, the periproct, has the rectum.

A child worm can relocate dirt that is 500 times its very own weight.

D. Kucharski K. Kucharska/Shutterstock. com


Essentially, they dig via the dirt, decomposing fallen leaves, manure, or garden compost. They do this via tightenings of the muscle mass in their sectors in manner ins which look like the tightenings of the human gastrointestinal system. The activity also has the exact same name as peristalsis. The worm utilizes strength to relocate the planet. A child worm can relocate dirt that’s 500 times its very own weight off the beaten track. As it relocates, its skin is safeguarded both by a follicle and by mucous. The mucous adds to a soft clicking sound the worm makes as it tunnels.

Earthworms can additionally restore their sectors from the head end like numerous lizards can restore their tail if it’s shed. Without a doubt, one species, Eisenia fetida can become 2 worms if it’s reduced in 2. Mentioning E. fetida, this worm releases a negative odor if it’s roughed up, and various other worms taste poor to would certainly- be predators.


These animals are discovered in position that are cozy, dark, and moist. This can be dirt, decomposing plant life, or garden compost. They are discovered around the globe, and some species have actually come to be intrusive. Though earthworms like it cozy and damp, it appears they do not like it as well cozy. There are less of them in exotic environments than in warm areas. They do best when the temperature level is in between 59 and 86 levels Fahrenheit.


These animals can be stated to be omnivorous, for they eat both plant and animal issue. Essentially, they eat the extremely things they are relocating via, whether it be dirt, manure, or rotting plant product. Their gastrointestinal system is extremely basic. It is simply a straight tube from the mouth to the rectum, without the bends or contours, or coils that are discovered in various other animals. When the food is absorbed, what remains appears in little pellets called spreadings.

The worm does not utilize every one of the nutrients in its food, a lot of it, like nitrogen, exists in the spreadings. This makes spreadings simply things for feeding dirt. For a full listing of foods earthworms eat, look into our “What Do Earthworms Eat: Their Diet Clarified” web page.

Predators and Dangers

The variety of animals that such as to eat earthworms is as well lengthy to listing right here, however they consist of robins and various other insectivorous birds. Frogs and toads break them up in the blink of an eye. They are consumed by turtles, salamanders, slugs, snails, snakes, leeches, foxes, jackals, Malayan civet cats, moles, hedgehogs, and hog badgers. They are parasitized by nematodes and flukes and termites. Collection fly larvae eat recently hatched out worms. Obviously, humans spike them on hooks to capture fish and feed them to their reptilian pets. Environment adjustment might additionally posture a hazard to the worms if the pH or temperature level of their environment is significantly transformed. Yet now, they are plentiful and their conservation status is not examined.

Reproduction and Life Process

The earthworm is generally a hermaphrodite, which suggests it has both male and female body organs. As a hermaphrodite, it is both daddy and mommy to its children at the exact same time. A couple of species can recreate without their eggs being fed. This is called parthenogenesis. There are also some species that need to mate anyhow for also parthenogenetic reproduction to happen.

Earthworm reproduction is complicated and a little bit sticky. Initially, they mate externally, which suggests they generally mate during the night, and their reproductive body organs are saved in their 9th to their fifteenth sector. These sectors save either sperm or eggs or cavities that save sperm, and they need to enter into get in touch with for children to be made. Yet the method this is done is resourceful. Initially, both worms sign up with nose to tail and exchange sperm. After they have actually done this, the clitellum begins to produce a slimed tube that develops a ring around the worm. When this occurs, the worm twitches revoke the ring. Television gets the worm’s eggs, and as the earthworm remains to twitch out of the ring it gets the cavity that has actually accumulated sperm, and the sperm feeds the eggs. When the worm backs entirely out of the ring, the ring closes right into type of a cocoon, which is concealed in the dirt. The fed eggs inside establish and hatch out right into little worms after concerning 3 weeks to proceed the life process.

Incidentally, if there’s very little food or it ends up being as well chilly or completely dry, the life process can be postponed. Earthworms can estivation, which suggests they generally closed down their life cycle till problems enhance. These invertebrates can live 8 years, however many do not live almost that long. Lots of do not also take care of to hatch out of their cocoons.


These worms are infamously plentiful, and also in those locations where they’re intrusive, it is tough to do away with them. The something humans can do is not to move species of earthworms to locations where they are foreign. This can be difficult due to the fact that it’s tough to inform them apart. Researchers can just ensure their classification via small distinctions in makeup, such as the variety of sectors or whether the male pores remain in front of or behind the female pores.


  1. Uncle Jim’s Worm Farm, Available here:
  2. bioKids, Available here:
  3. University of Illinois, Available here:
  4. USDA, Available here:
  5. BBC News, Available here:
  6. howstuffworks, Available here:
  7. SCIENCING, Available here:
  8. Wikipedia, Available here:

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