This week in 1999, the Congo Gorilla Forest opened at the Bronx Zoo. This illustration by Jack Unruh was on the invitation for the Opening Day ceremony. Since it opened, 7 million visitors have visited the exhibit, which allows zoo guests to donate their admission fees to WCS field conservation efforts in Central Africa. The exhibit has raised more than $10.6 million, which has gone directly to fund the conservation of Central Africa’s Congo Basin rainforest and wildlife. A happy 20 Year Anniversary to the exhibit! 

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