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The Radouc Site of European Importance in Mlada Boleslav, pictured on July 9, 2026, is home to a colony of the critically endangered European Ground Squirrel, Spermophilus citellus, estimated at 350 individuals; it is one of 40 locations in the Czech Republic where the European ground squirrel still occurs. It differs from other known sites in the Czech Republic primarily in that it is immediately adjacent to an urban housing development. Frequent contact with people causes the ground squirrels to alter their natural behavior, losing their shyness and instinct for self-preservation. (CTKxPhoto RadekxPetrasek) CTKPhotoP2026070904267 CTKPhotoP2026070904267

The Radouc Site of European Importance in Mlada Boleslav, pictured on July 9, 2026, is home to a colony of the critically endangered European Ground Squirrel, Spermophilus citellus, estimated at 350 individuals; it is one of 40 locations in the Czech Republic where the European ground squirrel still occurs. It differs from other known sites in the Czech Republic primarily in that it is immediately adjacent to an urban housing development. Frequent contact with people causes the ground squirrels to alter their natural behavior, losing their shyness and instinct for self-preservation. (CTKxPhoto RadekxPetrasek) CTKPhotoP2026070904267 CTKPhotoP2026070904267

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Credit: CTK Photo

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Recording Date: Jul 9, 2026

Media Size: 4,649×3,099 Pixels

The Radouc Site of European Importance in Mlada Boleslav, pictured on July 9, 2026, is home to a colony of the critically endangered European Ground Squirrel, Spermophilus citellus, estimated at 350 individuals; it is one of 40 locations in the Czech Republic where the European ground squirrel still occurs. It differs from other known sites in the Czech Republic primarily in that it is immediately adjacent to an urban housing development. Frequent contact with people causes the ground squirrels to alter their natural behavior, losing their shyness and instinct for self-preservation. (CTKxPhoto RadekxPetrasek) CTKPhotoP2026070904267 CTKPhotoP2026070904267

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