No, not always. Species from the Class 'Arachnida' have eight legs, however Spiders (Order Araneae) is just one group of creatures in this order. Scorpions, mites, solifuges, are all examples of other eight-legged organisms that are related to spiders, but belong to different Orders.
things with eight legs
A funnel spider has eight legs, as do all spiders.
yes arachnids have eight legs like spiders
Spiders have eight legs.
Spiders are the only living things that have eight legs. spiders, scorpions, ticks, and mites
No, all spiders have eight legs.
Spiders have eight legs .
no they have eight legs
in a spiders head, they have eight eyes, eight legs, and no antennae.
light bulbs, octopus, spiders legs,and chairs.
All spiders have eight legs, but not all spiders have eight eyes. Some have 6, 4, 2, or 0 eyes.
No, they have eight.