Country Biodiversity Game — Higher or Lower?
Brazil: 100,000+ species. Higher-or-lower country biodiversity quiz across 30 nations.
Nature
Oldest Tree Age Game — Higher or Lower?
Bristlecone Pine: 4,800+ years. Higher-or-lower oldest-tree-by-species quiz across 30 long-lived species.
Historic Earthquake Magnitude Game — Higher or Lower?
Valdivia 1960: M9.5. Higher-or-lower magnitude quiz across 30 of history’s most powerful earthquakes.
Volcano VEI Game — Higher or Lower?
Tambora 1815: VEI 7. Mount St. Helens: VEI 5. Higher-or-lower volcanic explosivity quiz across 30 historic eruptions.
Endangered Species Population Game — Higher or Lower?
Vaquita: 10 left. African elephants: 415,000. Higher-or-lower wild population quiz across 30 endangered species.
Shark Species Length Game — Higher or Lower?
Whale shark hits 18 m. Dwarf lanternshark fits in your hand. Higher-or-lower shark length quiz across 30 species.
Animal Pregnancy Duration Game — Higher or Lower?
Elephants carry 22 months. Hamsters 16 days. Higher-or-lower animal gestation period quiz across 30 species.
Country Forest Coverage Game — Higher or Lower?
Suriname is 97% forest. Egypt is 0.07%. Higher-or-lower forest coverage quiz across 30 countries.
Snake Venom Yield Game — Higher or Lower?
King Cobra delivers 400 mg per bite. Coral snakes deliver 6. Higher-or-lower venom yield quiz across 30 venomous snakes.
Tallest Tree Species Game — Higher or Lower?
Coast Redwoods top 115 m. Bonsai stay under 1. Higher-or-lower tree species height quiz across 30 of the world’s tallest tree types.