🌴 Quokka Island Summer Lab: Shade, Water Budget, Heat Balance and Nocturnal Foraging

A low-poly island where twenty quokkas share shade, seeps and food through a day and night. Each animal has a lumped heat and water budget: sun load, evaporative cooling that costs water, shivering, and simple behaviour rules. Heatwave presets, a sun-versus-shade sweep and five independent numerical checks.