Eat your heart out, Lassie!

Masha, a long-haired tabby cat, saved the life of a baby abandoned in the streets of Russia — after she climbed into the box he was discarded in and kept him warm, health officials said.

“The baby had only been outside for a few hours and thanks to Masha … he was not damaged by the experience,” a hospital spokesman told Central European News.

The whiskered hero even meowed to get the attention of a passerby.

“She is very placid and friendly, so when I heard her meowing, I thought that perhaps she had injured herself,” said Obninsk city resident Irina Lavrova. “Normally she would have come and said hello to me. You can imagine my shock when I saw her lying in a box next to a baby.”

Masha is a communal cat who is looked after by local residents. When she found the baby — who appeared to be in great shape — she immediately took to him as if he were her own, according to CEN.

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