Seatworm

**Phyla**: Nematoda

**Class**: Secernentea

**Scientific Name**: Enterobius vermicularis

**Location**: United States and Western Europe

**Size**: **Female**: 8 to 13 millimeters long, and 0.5 millimeter thick. **Male**: 2 to 5 millimeters long and 0.2 millimeter thick.

**Habitat**: Human intestines!!! Mostly in children. :(

**Living Requirements**: They require the warmth of the human body perferable the intestines.

**Life Cycle**: The life cycle begins with eggs being ingested, the eggs hatch in the small intestine, and migrate through the small intestine towards the colon, they become adults and the female can live 5 to 13 weeks the males usually die after they are done mating with the females, the female deposites her eggs at the anus opening so that they can get oxygen to develope.

**Male and Female differences**: The male is smaller than the female. The female has a pointed posterior end and the males have a more rounded posterior end.

**Interesting Facts**: Male and female worms reproduce sexually but they only produce female offspring. Cats and dogs don't catch the same pinworms that we do they just carry it on their skin.

**Human Impact**: Causes humans to have:
 * Disturbed sleep
 * Itching of the anal area, may sometim  es be intense, especially at night when the female worms are laying eggs
 * Itching of the vaginal area (females)
 * <span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">Slight nausea
 * <span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">Vague intermittent abdominal pain

Zookeeper: Sarah Reimer Content recieved from: [] [] [] [] Images recieved from: [] []