Ever caught siblings plotting? In Karula National Park, Estonia, it looks as though these two red fox kits froze mid-conspiracy, their expressions mirrored in curiosity and caution. They're not just springtime fluff; they're apprentices in survival. Born in litters averaging four to six kits, foxes grow quickly, their underground den becoming a wrestling ring, classroom and testing ground. Older kits often help feed, guard and teach the younger ones, turning play into practice and mischief into muscle memory.

Established in 1979, Karula protects one of southern Estonia's most varied landscapes: rolling hills, quiet forests and more than three dozen small lakes shaped by Ice Age glaciers. Spruce, pine and birch dominate the woods, while wetlands shelter beavers, otters and nesting cranes. Wolves and lynx still roam these forests too, making the park a quiet but vital refuge for wildlife across northern Europe today.