百度百科
Arising in early 2009, the meme initially began as a series of vandalised contributions to Baidu Baike, through the creation of humorous articles describing a series of fictional creatures, with each animal with names vaguely referring to Chinese profanities (utilizing homophones and characters using different tones). Eventually, images, videos (such as faux-documentaries) and even a song regarding aspects of the meme were released. It was thought that the Baidu hoaxes were written in response to recent strict enforcements of keyword filters in China, introduced in 2009, which attempted to eliminate all forms of profanity. The Baidu Baike "articles" initially began with "Four Mythical Creatures" (The "Grass Mud Horse", "French-Croatian Squid", "Small Elegant Butterfly" and "Chrysanthemum Silkworms"), and were later extended to ten.