Question - Do worms need a mate to reproduce?

Answered by: Bonnie Mitchell  |  Category: General  |  Last Updated: 24-08-2021  |  Views: 1386  |  Total Questions: 14

What you can't see, even on close inspection, is that earthworms are hermaphrodites, meaning they have both male and female reproductive organs. Despite this anatomy, most species of earthworms need a partner to reproduce. Most people already know that worms are hermaphrodites. This means that they have both male and female reproductive organs. However, they cannot reproduce alone. They must pair with another worm for successful reproduction to occur. Earthworms are simultaneous hermaphrodites, meaning worms have both male and female reproductive organs. During sexual intercourse among earthworms, both sets of sex organs are used by both worms. If all goes well, the eggs of both of the mates become fertilized. When mating, another worm and I join together with heads pointing in opposite directions. Sperm is passed from one worm to the other and stored in sacs. Then a cocoon forms on each of us on our clitellum. As we back out of the narrowing cocoons, eggs and sperm are deposited in the cocoon. The breeding cycle is approximately 27 days from mating to laying eggs. Worms can double in population every 60 days.

https://www.cathyscomposters.com/faq.htm

Each cocoon or egg contains up to 20 babies (average 5 or 6). How long do worms live? Worms can live up to 10 years! However, in the wild where there are many predators the average lifespan for a worm is 1 - 2 years.

https://www.livescience.com/38371-two-worms-worm-cut-in-half.html

If an earthworm is split in two, it will not become two new worms. The head of the worm may survive and regenerate its tail if the animal is cut behind the clitellum. But the original tail of the worm will not be able to grow a new head (or the rest of its vital organs), and will instead die.

https://www.scientificamerican.com/article/why-earthworms-surface-after-rain/

Earthworms are unable to drown like a human would, and they can even survive several days fully submerged in water. Soil experts now think earthworms surface during rain storms for migration purposes.

https://www.sciencebuddies.org/science-fair-projects/ask-an-expert/viewtopic.php?t=7775

OSLO (Reuters) - Worms squirming on a fishhook feel no pain -- nor do lobsters and crabs cooked in boiling water, a scientific study funded by the Norwegian government has found.

https://aggie-horticulture.tamu.edu/galveston/beneficials/beneficial-38_earthworms.htm

The average life span of earthworms is species-dependent. Researchers have found that some species have the potential to live 4-8 years under protected growing conditions meaning no predators and under ideal conditions.

https://www.mentalfloss.com/article/52337/3-creatures-more-one-heart

Earthworms While it is not technically a “heart, ” the aortic arch of the earthworm performs a similar function and is commonly referred to as one for the sake of simplicity. An earthworm has five arches/hearts that are segmented and pump blood throughout its body.

https://www.washingtonpost.com/national/health-science/how-do-night-crawlers-eat-and-poop--and-other

They tend to move forward. If an earthworm is cut in half, will it regenerate into two worms? No. The half with the worm's head will survive if the cut is after the segments containing vital organs.

https://journeynorth.org/tm/worm/WormLife.html

Seeing: Earthworms have no eyes, but they do have light receptors and can tell when they are in the dark, or in the light. Hearing: Earthworms have no ears, but their bodies can sense the vibrations of animals moving nearby. Thinking and feeling: Worms have a brain that connects with nerves from their skin and muscles.

https://en.wikipedia.org/wiki/Earthworm

Earthworms are hermaphrodites; that is, they have both male and female sexual organs. The sexual organs are located in segments 9 to 15. As a result, segment 15 of one worm exudes sperm into segments 9 and 10 with its storage vesicles of its mate.

https://www.medicalnewstoday.com/articles/175134.php

Sometimes the worms are visible in the anal area, underwear, or in the toilet. In stools, the worms look like small pieces of white cotton thread. Because of their size and white color, pinworms are difficult to see. It is best to search for pinworms at night, when the female comes out to lay her eggs.

https://abcnews.go.com/Health/PainManagement/story?id=722163&page=1

Working on a Chain Ganglia But animals with simple nervous systems, like lobsters, snails and worms, do not have the ability to process emotional information and therefore do not experience suffering, say most researchers.

https://aggie-horticulture.tamu.edu/archives/parsons/publications/worm/worm.html

Each worm bears the reproductive system of both sexes, but two worms must mate for reproduction to take place. Redworms consume large amounts of organic matter and are found in manure and compost piles and decaying leaves. They live closer to the surface than earthworms and reproduce very quickly in captivity.

https://www.nationalgeographic.com/animals/invertebrates/c/common-earthworm/

Earthworms' bodies are made up of ring-like segments called annuli. These segments are covered in setae, or small bristles, which the worm uses to move and burrow. Night crawlers are so named because they are usually seen feeding above ground at night. The worm's first segment contains its mouth.

https://en.wikipedia.org/wiki/Asexual_reproduction

Animals that reproduce asexually include planarians, many annelid worms including polychaetes and some oligochaetes, turbellarians and sea stars.