5e:Spider
by John C. Stennis Space Center, National Aeronautics and Space Administration (NASA)
via Mediawiki Commons
Public Domain
Image is not part of the SRD
Spiders (order File:Icon External Link.svg Araneae) are air-breathing arthropod File:Icon External Link.svgs that have eight legs and chelicerae File:Icon External Link.svg with fangs able to inject venom File:Icon External Link.svg. They are the largest order of arachnid File:Icon External Link.svgs… Spiders are found worldwide on every continent except for Antarctica File:Icon External Link.svg, and have become established in nearly every habitat File:Icon External Link.svg…
Anatomically, spiders differ from other arthropods in that the usual body segments File:Icon External Link.svg are fused into two tagmata File:Icon External Link.svg, the cephalothorax File:Icon External Link.svg and abdomen File:Icon External Link.svg, and joined by a small, cylindrical pedicel File:Icon External Link.svg. Unlike insect File:Icon External Link.svgs, spiders do not have antennae File:Icon External Link.svg. In all except the most primitive group, the Mesothelae File:Icon External Link.svg, spiders have the most centralized nervous systems of all arthropods, as all their ganglia File:Icon External Link.svg are fused into one mass in the cephalothorax. Unlike most arthropods, spiders have no extensor File:Icon External Link.svg muscles in their limbs and instead extend them by hydraulic pressure.
Their abdomens bear appendages that have been modified into spinneret File:Icon External Link.svgs that extrude silk File:Icon External Link.svg from up to six types of glands. Spider web File:Icon External Link.svgs vary widely in size, shape and the amount of sticky thread used. It now appears that the spiral orb web may be one of the earliest forms, and spiders that produce tangled cobwebs are more abundant and diverse than orb-web spider File:Icon External Link.svgs.
List of Spiders
7 Spiders
- 5e
- Varied Licenses
- Pages with broken file links
- 5e Monsters
- 5e Overviews
- 5e Beasts
- 5e Spiders
- 5e Arctic Creatures
- 5e Coastal Creatures
- 5e Desert Creatures
- 5e Forest Creatures
- 5e Grassland Creatures
- 5e Hill Creatures
- 5e Mountain Creatures
- 5e Swamp Creatures
- 5e Underdark Creatures
- 5e Underground Creatures
- 5e Urban Creatures
- 5e Monster Overviews