The word spider derives from Proto-Germanic *spin-þron-, literally 'spinner' (a reference to how spiders make their webs), from the Proto-Indo-European root *(s)pen- 'to draw, stretch, spin'. See more

Spiders are chelicerates and therefore, arthropods. As arthropods, they have: segmented bodies with jointed limbs, all covered in a cuticle made of chitin and proteins; heads that are composed of several seg… See more

Although spiders are generally regarded as predatory, the jumping spider Bagheera kiplingi gets over 90% of its food from fairly solid plant material, which acacias produce as part of a mutually beneficial relationship with a spec… See more