Although they are technically carnivores, pandas eat mostly plants, and specifically one plant—bamboo. It makes up 90 percent of their diet. Because of this, pandas have been particularly vulnerable to habitat loss. For decades, people cut down bamboo forests to clear land for farming, roads, and logging. That’s what caused pandas’ steep population decline. They became one of the world’s most endangered mammals. Roughly 30 years ago, scientists estimated that only 1,114 pandas survived in the wild.
Thanks to the protection of panda habitat in China, panda numbers are going up. The Chinese government has established nearly 70 nature preserves. A recent survey counted roughly 1,800 pandas in the wild. Zoos are home to around 375 additional pandas, some of which are involved in the breeding program.