The red fox Ralf is pictured during a walk with zoo employee Vlada Zapolskaya at the Royev Ruchey Zoo, in the Siberian city of Krasnoyarsk, Russia. Zapolskaya specializes in taming wild animals and adapting them to human interaction. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which has been experimented on fox domestication through long-term selection and breeding for more than 50 years.

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The red fox Ralf is pictured during a walk with zoo employee Vlada Zapolskaya at the Royev Ruchey Zoo, in the Siberian city of Krasnoyarsk, Russia. Zapolskaya specializes in taming wild animals and adapting them to human interaction. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which has been experimented on fox domestication through long-term selection and breeding for more than 50 years.

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A zoo employee Vlada Zapolskaya plays with the red fox Ralf at the Royev Ruchey Zoo, in the Siberian city of Krasnoyarsk, Russia. Zapolskaya specializes in taming wild animals and adapting them to human interaction. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which has been experimented on fox domestication through long-term selection and breeding for more than 50 years.

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A zoo employee Vlada Zapolskaya sits in a car with the red fox Ralf at the Royev Ruchey Zoo, in the Siberian city of Krasnoyarsk, Russia. Zapolskaya specializes in taming wild animals and adapting them to human interaction. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which has been experimented on fox domestication through long-term selection and breeding for more than 50 years.

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A zoo employee Vlada Zapolskaya walks with the red fox Ralf at the Royev Ruchey Zoo, in the Siberian city of Krasnoyarsk, Russia. Zapolskaya specializes in taming wild animals and adapting them to human interaction. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which has been experimented on fox domestication through long-term selection and breeding for more than 50 years.

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A zoo employee Vlada Zapolskaya sits in a car with the red fox Ralf at the Royev Ruchey Zoo, in the Siberian city of Krasnoyarsk, Russia. Zapolskaya specializes in taming wild animals and adapting them to human interaction. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which has been experimented on fox domestication through long-term selection and breeding for more than 50 years.

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A zoo employee Vlada Zapolskaya walks with the red fox Ralf at the Royev Ruchey Zoo, in the Siberian city of Krasnoyarsk, Russia. Zapolskaya specializes in taming wild animals and adapting them to human interaction. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which has been experimented on fox domestication through long-term selection and breeding for more than 50 years.

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A zoo employee Vlada Zapolskaya walks with the red fox Ralf at the Royev Ruchey Zoo, in the Siberian city of Krasnoyarsk, Russia. Zapolskaya specializes in taming wild animals and adapting them to human interaction. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which has been experimented on fox domestication through long-term selection and breeding for more than 50 years.

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A zoo employee Vlada Zapolskaya walks past figures of primitive man and woman with the red fox Ralf at the Royev Ruchey Zoo, in the Siberian city of Krasnoyarsk, Russia. Zapolskaya specializes in taming wild animals and adapting them to human interaction. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which has been experimented on fox domestication through long-term selection and breeding for more than 50 years.

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A zoo employee Vlada Zapolskaya walks past a figure of a dinosaur with the red fox Ralf at the Royev Ruchey Zoo, in the Siberian city of Krasnoyarsk, Russia. Zapolskaya specializes in taming wild animals and adapting them to human interaction. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which has been experimented on fox domestication through long-term selection and breeding for more than 50 years.

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A zoo employee Vlada Zapolskaya walks past a figure of a dinosaur with the red fox Ralf at the Royev Ruchey Zoo, in the Siberian city of Krasnoyarsk, Russia. Zapolskaya specializes in taming wild animals and adapting them to human interaction. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which has been experimented on fox domestication through long-term selection and breeding for more than 50 years.

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A zoo employee Vlada Zapolskaya walks with the red fox Ralf at the Royev Ruchey Zoo, in the Siberian city of Krasnoyarsk, Russia. Zapolskaya specializes in taming wild animals and adapting them to human interaction. Ralf was born at the Institute of Cytology and Genetics (ICG) in Novosibirsk, which has been experimented on fox domestication through long-term selection and breeding for more than 50 years.

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