It's not hard to tell spiders apart from other tiny animals such as ticks, scorpions, centipedes, millipedes, isopods, and insects.
Spiders differ from insects by lacking compound eyes and wings.
Blonde palomino tarantula, Aphonopelma chalcodes There are about 35,000 species of spiders around the world. The true spiders are the most commonly encountered, and are represented by over two dozen families including the orb weavers, wolf spiders, jumping spiders, funnel web spiders, crab spiders, and widow spiders. Spiders are adapted to their environments. Adaptations are inherited abilities that help animals carry out their life functions and survive in the natural world. Spiders have special adaptations for breathing, feeding, escaping enemies, sensing changes in the environment, and mating.