They both have 8 limbs. Those are the only similarities.
Not closely: spiders are arachnids (a type of chelicerat), octopuses are cephalopods (a type of mollusk). However it is believed that all living things do have an ultimate common ancestor, no matter how much they have diverged from each other.
harvestmen, scorpions, spiders, mites, ticks, and octopuses
Spiders are the only living things that have eight legs. spiders, scorpions, ticks, and mites
Some animals who have 8 legs include: Squids Scorpion Octopus Spider
Wild Freaks of Nature - 2011 Alligator Night Vision Super-Silk Spinning Spiders Intelligent Octopuses was released on: USA: 2011
Octopuses have keen eyesight. Octopuses, like other cephalopods, can distinguish the polarization of light.
Yes, spiders are arthropods. Arthropods are a group of invertebrate animals that include insects, spiders, crustaceans, and more. Spiders specifically belong to the class Arachnida within the phylum Arthropoda.
# Worms # Slugs # Octopuses # Spiders # ants
There are many invertebrates in the world but I would just specify the most common invertebrate worms, slugs, octopuses, spiders and ants.
Those are Spiders!
Not really. They aren't extremely common, but they aren't rare.
crabs, crayfish, and mollusk