How it works
How does a spider straighten its legs, and what hardens its silk? These spider trivia questions and answers fill five rounds, from the bolas spider to the first webs in amber.
Read the full guide
Five rounds, from spinner to Skylab
Names and kinds sorts true spiders from tarantulas by the way their fangs move. Body, blood and legs finds the knee, the book lungs and a tube for a heart. Eyes, senses and silk learns what makes silk set. Hunting, food and defense swings a bolas and cartwheels down a dune. Webs, fossils and space goes from a diving bell to goats' milk.
Arachnids trivia questions and answers, spiders first
Scorpions and the oldest land arachnid get a question each; the rest is spiders. Check any answer by pressing it: the card shows right or wrong, then a reason and its article. Scored round marks a round of twenty in one go.
Questions and answers
How many eyes does a spider have?
Most have eight, set in four pairs on the top front of the cephalothorax. Some species have six, four or two, and cave-dwelling species may have none.
What is spider silk made of?
Mainly a protein. It starts as a liquid and hardens as it is drawn out, not by exposure to air. It is about as strong under tension as nylon but much more elastic.
Are spiders insects?
No. Spiders are arachnids, like scorpions. They have eight legs and a body in two sections, and unlike insects they have no antennae.
How were the answers checked?
Each was read on October 3, 2026 in the English Wikipedia article Spider, linked under every question. Species counts, size records, mating, bites and their effects on people, and spiders as food are left out.