A brilliant 2008 campaign by World Wildlife Fund (WWF) has been resurfacing thanks to a recent reddit post going viral. The campaign, called WWF Japan – Population by pixel, was created by the agency Hakuhodo C&D / Tokyo. The brains behind it were creative directors Nami Hoshino, Yoshiyuki Mikami, and designer Kazuhiro Mochizuki. Inspired by their work, Imgurian JJSmooth44 made a follow-up to their project and it’s just as powerful as the original. “I did it as a programming challenge,” JJSmooth44 wrote.

African Wild Dog. Estimated between 3000 and 5500 remain

Image credits: JJSmooth44

“I did it … in python … but the code is very gross. I only worried about the final product and not the readability/niceness of the code.” They paid homage to Hakuhodo C&D / Tokyo by scraping the Animal Planet endangered animals list.

Amur Leopard. Estimated about 60 remain

Image credits: JJSmooth44

Amur Tiger. Estimated about 450 remain

Image credits: JJSmooth44

Asian Elephant. Estimated between 40000 and 50000 remain

Image credits: JJSmooth44

Bengal Tiger. Estimated about 2500 remain

Image credits: JJSmooth44

Black Footed Ferret. Estimated about 300 remain

Image credits: JJSmooth44

Black Rhino. Estimated about 5000 remain

Image credits: JJSmooth44

Blue Whale. Estimated between 10000 and 25000 remain

Image credits: JJSmooth44

Bonobo. Estimated between 10000 and 50000 remain

Image credits: JJSmooth44

Bornean Orangutan. Estimated between 45000 and 69000 remain

Image credits: JJSmooth44