DAILY DRIT

By: Alice and Han

Habitat

Before we get deeply into the habitats, you should know that there are 3 types of worms. The habitat of the worms depends on the type of worm.


Epigeic worms

  • Surface Dwellers
  • Lives in areas that have high organic matter
  • Lives close to the surface of soil
  • Eats decaying plants and dung
  • Skin is dark in color
  • Mostly small
  • Don't form permanent burrows
  • Moves fast due to strong muscles
Endogeic worms

  • Topsoil Dwellers
  • Lives in top 20 cm
  • Most common in New Zealand
  • Eats mostly soil but also goes up to surface for food
  • Semi-permanent Burrows
  • Slightly bigger than Epigeic worms
Anecic worms

  • Subsoil Dwellers
  • Permanent Burrows as deep as 3 meters
  • Eat only soil
  • Little Pigment
  • Very long
*There are also other worms who do not live underground.

Some worms live in the crooks of branches and others are aquatic worms which live in water.

Mr. Long Earthworm

I am a normal earthworm, one of the most common types of worms in the whole wide world. I live in Bob's Backyard Garden where the soil is very moist and rich. I am a Epigeic worm, which means I am a surface dweller and like to live on the surface of the soil. I eat the discarded pieces of leaves and things that are decomposing whenever I can find them. I am currently about 2 years old and have a body length of approximately 24 centimeters. My very well paying job is to eat the soil and to help the flowers grow.

Adaptation

Adaptation is the process where an organism evolves itself to fit into its habitat. Every organism has evolved even a little to survive in its given environment.

3 Types of Adaptation

Behavioral

Physical

Physiological

Behavioral :

  • Cannot see or hear, but are sensitive to vibrations. This helps the worms sometimes get away from predators. They remember the vibrations a mole makes and when they feel the same vibration, they recognize it and run away.
  • Are sensitive to light. That is why you may see them mostly at night.
  • Lose moisture through their skin. That is why they move to moist ground, so that they can survive.

Physical:

  • A special worm in New Zealand emits a fluid when it is disturbed. It is called bioluminescence fluid.
  • Aestivation is a process where the worm becomes inactive when the temperature of the environment gets too hot or cold.

Physiological :

  • Thin and slender body shape - Helps navigate through small tunnels
  • Setae - These hairs provide some grip to help the earthworm move through the soil.
  • 2 muscles run along the side of the works body. These two groups of muscles work together to help the earthworm move.
  • A worm pushes it’s pharynx out of its mouth to grab food and and pulls it back inside its mouth to wet it with saliva.
  • Mucus (coelomic fluid) is produced by the worm to help it move easily around in the soil.

There is a "Hole" New World Underneath Your Feet!

Annual Water Worm Festival

Thursday, Jan. 1st 2015 at 10pm-12am

2568 Solomons Island Rd

Annapolis, MD

Calling all Worms! To start off a new year, come to the Annual Water Worm Festival.

The Festival is a place where you can share life facts on what to eat, how to dig deeper, and other useful life facts. It is also a place where things from all around the world can be shared! But mostly it is a very wet event that will wet you down to the bone making you feel replenished and moisturized. So come down to Annapolis to socialize with the whole worm world!

LifeStyle

Worms are very different from humans.

  • Their lifespans are shorter and they have many predators like moles.
  • They are sensitive to temperature changes.
  • Worms breathe through their skin.
  • Air dissolves on the mucus on a worm’s skin.

If a worm’s skin ever dries out, the worm will suffocate.

  • Worms do not have teeth, instead their mouth is extremely strong.

The front of the worm is pointed and firm so it can push its way through crevices and eat through its burrows.

  • Worms do not hear but they can sense the vibrations of near by animals moving.
  • A worm’s body has many segments. Each segment has stiff hair-like structures called setae.


Worms have 2 types of muscles:

  • Circular Muscles

Circular muscles,the outer layer of muscle, decrease the diameter but increases the length of an earthworm's body when contracted.

  • Longitudinal Muscles

The inner layer of muscles, which are longitudinal, shortens but widens the body when contracted.


Steps a worm takes to move forward;

  1. It grips the soil with its back setae so the back part of it is stuck to the dirt.

  2. It squeezes its circular muscles, which makes its body get longer. Because the back of the body is gripping the soil, only the front part of the body moves forward.

  3. The front setae grip the soil and the back setae lets go.

  4. The worm squeezes its longitudinal muscles, which makes its body shorter. The back part moves forward.

The Giant Earthworm

The Giant Earthworm