Key Information
Spiders
| Species | 50,356 known species |
| Diet | Carnivore |
| Length | 0.015 to 12 in |
| Lifespan | Up to 1 to 2 years (not including tarantulas |
| Classification | Arthropoda > Arachnida > Araneae |
| Conservation Status | Varies |
| Habitat | A variety of habitats |
Learning Point
- Spiders are a group of arachnids that vary greatly in body shape and abilities. Many create webs, and their webs are designed for a variety of uses, and to catch prey in different ways.
Project
- Draw an orb-weaving spider making its web.
- Overview
- Eyes
- Web



Location
| Places | Worldwide except Antarctica |
Fun Facts
- While most spiders are carnivorous, some spiders eat plants and nectar, and at least one species is a herbivore.
- Spiders have eyesight better than most insects.
- Not all spiders have eight eyes, some having six, four, two, or even none.
- Spiders have been found in amber from the Cretaceous period.
Past Lessons
| 6 | July 6, 2026 | (North America) |