Animals & Nature
Sea Turtles Quiz
Loggerhead, leatherback, green — 100 million years of ocean wandering.
Loggerhead, leatherback, green — 100 million years of ocean wandering.
Sea turtle sex is determined by sand temperature — and climate change is producing 99% female green turtle hatchlings on parts of the Great Barrier Reef. This quiz covers all seven living species, from the giant leatherback's deep dives to the olive ridley's mass arribadas.
Each round presents 10 randomized questions from a pool of 50, with four multiple-choice options and instant feedback after every answer. Your final score comes with a performance tier and shareable results.
You'll cover the seven living sea turtle species — green, loggerhead, hawksbill, olive ridley, Kemp's ridley, flatback, and leatherback — plus 110-million-year evolutionary history, magnetic-field navigation, temperature-dependent sex determination, the 'lost years' in the open ocean, and ongoing threats from plastic, bycatch, and warming sand.
The leatherback (Dermochelys coriacea) — up to 2.4 m long and 700 kg. It's also the only sea turtle without a hard shell, the deepest-diving reptile, and able to survive in cold subarctic waters via countercurrent heat exchange.
Sea turtle sex depends on incubation temperature: cooler nests produce males, warmer nests produce females. Rising sand temperatures are skewing populations strongly female, with parts of the Great Barrier Reef seeing 99% female green turtle hatchlings.
An 'arribada' (Spanish for 'arrival') is a mass-nesting event in which thousands of olive ridley or Kemp's ridley sea turtles beach themselves simultaneously to lay eggs. Major arribadas happen in Costa Rica, Mexico, and Odisha, India.
Last updated: May 2026