Annelida+Videos

Class Oligochaeta ex. Earthworm Class Polychaeta ex. Bristleworm Class Hirudnea ex. Leeches Earthworms:

[|(Picture Link)] [|(Picture Link)]

The clitellum, the girdle-like structure near the head of the worm, produces cocoons. Here, eggs are fertilized by sperm cells and the cocoon is deposited in the soil. Click [|here] to see a baby earthworm hatching from its cocoon!

An earthworm has five hearts! [|Watch] them beat in this video!

Bristleworms: [|(Picture Link)][| (Picture Link)]

A bristleworm uses its parapodia, the muscular bristle appendages along its side, to move. [|Watch] a bristleworm move up close.

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[|Watch] a type of bristleworm, a fireworm, move rapidly about the ocean.

//**Lumbricus terrestris (**//Earthworms)
by Chelsea Fierce Frogs

General Structure This image shows the internal structure of an earthworm.

It might be hard to see, but this is an actual earthworm that has been dissected!

Click [|here] to see a video clip on how an earthworm's digestive track works.

Want to learn some more facts? Click [|here] to read more about earthworms.

Go to this [|video] to see how an earthworm moves through its habitat. You can also go to the links below to check out other videos of earthworms.

Bristle Worms
Want to see a close up of a bristle worm's digestive track? Click __here__. Look closely though, because the movement of food is very slow.

Go [|here] to see pictures of bristle worms and other marine worms.

This picture is of a bristle worm in its natural habitat

Be careful where you swim or you will end up with a rash that comes from the poison in the bristle worms parapodias!

**Earthworms!** By Abigail Smith BADNA



Want to [|watch] how an earthworm processes its food? It's really cool, I promise. Just for fun, see if you can identify the clitellum, and then, as the video zooms in see if you can find the pharynx, the esophagus, then the crop, the gizzard and then the intestine. Before you click though, look at the above diagrams and get the main idea of where these parts are. If you have to watch the video more than once, great! More practice!

For locomotion, this [|video] shows the movement of the earthworm, and also has labels for you to click on for better understanding. Click on all of them and see if you can eventually point out the parts without the labels!


 * Bristleworms!**

Earthworms and bristle worms by asa arden wacky woodchucks This is a picture of a cross section of an earthworm. This is a picture of the bottom of a bristle worm and the top.

To see earthworms mating go [|here] to see the earthworms move and the egg ball go [|here]

**EARTHWORMS & BRISTLEWORMS**
Natalie Salmon - Punishers

//This is an image of the structure of an earthworm, including both external and internal sections.// //This picture shows the parts of the digestive system of an earthworm.//

[|Learn] how an earthworm moves, or [|watch] a live one move around! (First website: Click "now", then navigate using right hand bar) (Second website: Click "video clips", then choose one of the videos. This site also provides other information!)

Join [|Ernie] the earthworm as he shows teaches you about himself. (Click "virtual worm tour")

Learn some [|fun facts] about the contributions earthworms make for soil.

Test your new knowledge about earthworms with this short [|quiz]!



//This is an image of a bristleworm, otherwise known as a fire worm because the hairs on its body are filled with poison.//

Watch this [|video] to see a bristleworm eating a coral polyp. (The bristleworm is hard to see, but it's in the center)

=**Leeches!**=

Leeches suck on blood //This picture shows a carefully dissected leech with all its internal organs visible and intact.//


 * Click [|here] to watch how leeches move!!**


 * Check out this great [|link] for more information on leeches, also if you're up to it check out [|this link] to some fun facts about leeches!**
 * To see real leeches being used in medicine! Click [|this link].**