Quick biology and chess games for any phone, tablet, or computer. Your scores and badges are saved to your free player profile.
Today's group: {group}. How many can you place in 30 seconds? The same challenge for everyone, once per day. A different game each day!
Given an organism like a whale, elephant, shark, or spider, identify which sister group it is most closely related to! Pick a mode and a broad group, or play them all.
A fast 30-second arcade challenge: sort lifeforms into Vertebrates vs. Invertebrates with streak multipliers before time runs out. Keyboard shortcuts included.
Three organisms enter—which one doesn't belong? Two share a recent common ancestor (sister taxa); identify the evolutionary outgroup!
Three organisms, two close relatives, and one that only looks related. A shark beside a dolphin, a clubmoss beside a moss: spot the outsider and learn how evolution builds the same shape twice.
See a species, then tap where it comes from on the world map: a continent, or an ocean for sea creatures. Learn why marsupials live in Australia, and which famous pests were carried around the world by people.
Assess organisms across the 6-tier IUCN Red List spectrum—from Least Concern (LC) to Critically Endangered (CR) and Extinct (EX). Learn population trends, habitat pressures, and conservation recovery stories.
Simulate evolutionary gene pools across 20 population genetics scenarios! Run interactive Wright-Fisher drift generations, trigger bottlenecks, and calibrate HWE carrier frequencies (2pq).
Explore 18 real-world biomes on an interactive trophic energy canvas! Simulate keystone predator removal, calculate Lindeman's 10% energy pyramid law, and unlock cascade telemetry.
Explore Earth's 16 critical climate tipping elements on an interactive double-well hysteresis canvas (AMOC, Thwaites, Arctic ice, Amazon dieback, permafrost). Map bifurcation thresholds and hold warming below 1.5°C.
Excavate 20 geological horizons across 4.54 billion years of Earth's rock archives! Click strata in the rock column to unlock geochemical signatures, calibrate radiometric decay half-lives, and navigate the Big 5 mass extinctions.
Inspect real Hubble, JWST, and ESO telescope plates using negative luminance, high-contrast, and astrometry reticle filters. Classify galaxies and nebulae by primary morphology and diagnostic astrophysical structure.
Pilot interplanetary spacecraft across 22 historic missions! Configure trailing vs. leading hemisphere flybys, adjust periapsis altitude (rp), and ignite Oberth rocket burns to lock target trajectories.
Tap to bend a chain of beads so the oily ones hide together, away from water, just like a real protein. Play the 10-level campaign, the Daily Fold, or Endless Random Chains!
Read an mRNA three letters at a time and build 30 real bioactive peptides, one amino acid per codon. After each gene a base mutates: is it silent, missense or nonsense?
Test variable scaling multipliers on an interactive chalkboard across 22 landmark equations! Verify SI base dimensions ([M], [L], [T]), deduce missing terms, and solve power-law scaling challenges.
Study a real position and pick the best of three candidate moves. Preview each move on the board, commit your choice, and see whether it was Perfect, Good, or a Blunder.
Deduce the secret 5-letter word through letter overlap clues. Flag excluded letters, analyze intersections, and solve in the fewest guesses possible. Play random words, daily puzzles, or challenge friends with custom codes!
Command your starship through uncharted star systems in this roguelike survival voyage. Scan 3–6 celestial bodies per system for Easy, Medium, and Hard trivia across Science, General Knowledge, and Entertainment. Evade hazards, repair hull integrity, manage fuel, and unearth Alien Artifacts.
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