Wolf Spider

Gracie Dobbins, Joylen Betancourt, Blake Perkins

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Venomous or Not?

The bite of the wolf spider is poisonous, but not lethal. The bite may be very painful. First aid and medical attention should be sought as soon as possible.


Humans are benefiting from the venom and silk of spiders. The black widow's venom is being used to create a new treatment for cancer and Alzheimer's disease.

Comparison of Spiders

We will be comparing the black widow, brown recluse, and the wolf spider in size and color.

The adult brown recluse spider is 6 - 11mm in body length and at the widest leg span, they are roughly the size of a U.S quarter. Adults vary in color from dull yellow to tawny, dark brown. Younger spiders are lighter in color than them.

Most black widow spiders are 3 - 10mm in size. Females are larger than males and can measure 13mm in body length. They are shiny black and can be identified by a red hourglass on their stomachs.

An adult wolf spider 1/2 inch to more than 1 inch in body length. They are mottled grey to brown in color, with a distinct Union Jack impression on its back.

Explanation of spider’s role and importance in ecosystem

Wolf spiders and all other spiders eat insects that bite humans. The ecosystem needs spiders because they are on the menu for other animals, insects, and even humans. If we didn't have them all of the things that eat them would go hungry, so spiders play a big role in the ecosystem.

Explain how changes affect an ecosystem

All living things have to eat to stay alive. If we didn't have spiders and most of the creatures that rome the Earth then the whole ecosystem would crash and burn. Changes in the ecosystem could be good or bad. If the creatures in it died then it would be bad, but if the ecosystem gained more creatures or money then it would be good. Global warming is another cause affecting ecosystems, because animals have to have the right temperature and if they don't then they can die. Humans are a little cause in affecting ecosystems too, because we tear down their habitats and kill them.

Characteristics (Body Style)

2 body parts.

8 eyes

8 legs



Characteristics (Habitat)

Spiders live in forests, homes, vehicles, and grass. Most of them like dark places so humans can't see them.

Characteristics (Behavior)

Most spiders do not bite things unless it harasses them. They control their venom, so they usually just bite you, but don't release their venom into you.


I learned that different types of spiders spin different types of webs. Some spiders catch bigger prey, so they spin bigger webs. Other spiders catch smaller prey, so they spin smaller webs. Some webs have holes in them, some are thin, and some are thick. There are many different types of spider webs.

Comparing and Contrasting Spiders with Insects

Spiders have 8 legs, 8 eyes, 2 body parts, a set of pedipalps, and chelicerae. They either spin webs or hunt on the ground for food.

Insects have 3 pairs of jointed legs, 3 body parts, compound eyes, and a pair of antennae. They are usually spider prey.

Spiders and insects both lay eggs, they are both relatively small, and they both have exoskeletons.

Humans Negatively Affecting the Biodiversity of Spiders

Humans are negatively affecting the biodiversity of spiders by tearing down their habitats, killing them, and killing insects. When we kill insects, we are kind of killing spiders, because they eat insects.