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| English | Russian |
| karstic cave | карстовая пещера (Cova Dones is a karstic cave, Ruiz-Redondo says, meaning its walls and standing water are rich in calcium carbonate, a natural paint preservative. Early humans likely scooped red clay from the cave’s floor and walls, mixing it with water at their feet.  smithsonianmag.com ART Vancouver) |
| National Cave and Karst Research Institute | Национальный исследовательский институт пещер и карстовых пород (NCKRI, US MichaelBurov) |