A Malayan tiger cub who had been critically ill has returned to play in his exhibit at the Point Defiance Zoo & Aquarium in Tacoma.

Zoo officials say the cub named Berani returned to the exhibit Friday.

The News Tribune reports ( http://is.gd/qhDubG) the cub had emergency surgery Feb. 25 after zookeepers noticed he didn't feel well. Veterinarians say his illness likely was a case of enterotoxemia, in which toxins caused by bacteria create an infection.

Zoo officials are still trying to determine what caused the infection.

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Information from: The News Tribune, http://www.thenewstribune.com