Animals & Nature
Insects Deep Dive Quiz
Millions of species and trillions of individuals — how much do you know about insects?
Millions of species and trillions of individuals — how much do you know about insects?
Insects comprise roughly 80% of all known animal species, with an estimated 10 quintillion individuals alive on Earth at any given time. This quiz draws from a pool of 50 questions covering insect diversity, anatomy, remarkable adaptations, ecological importance, and the growing concern over insect population decline.
Each round presents 10 randomized questions from our pool of 50, so no two sessions are the same. Choose from four multiple-choice answers, get instant feedback with expert explanations, and share your score to challenge friends and family.
Questions span insect diversity from beetles to butterflies, remarkable abilities from bioluminescence to agriculture, the critical importance of insect pollination to global food production, and the alarming insect decline crisis threatening ecosystems worldwide.
Scientists estimate there are approximately 5.5 million insect species on Earth, though only about 1 million have been formally described and named. New species are discovered every year, particularly in tropical rainforests.
Beetles (order Coleoptera) are the most diverse order of insects with approximately 400,000 known species. This famously inspired biologist J.B.S. Haldane's quip about the Creator having "an inordinate fondness for beetles."
Monarch butterflies migrate up to 4,800 kilometers (about 3,000 miles) from Canada to their overwintering sites in central Mexico. This is the longest known insect migration, spanning multiple generations on the return trip north.
Last updated: April 2026