Wild Beast (S: 动物凶猛, T: 動物兇猛, P: Dòngwù Xiōngměng) is a 1991 novel by Wang Shuo.
It stars Ma Xiaojun (S: 马小军, T: 馬小軍, P: Mǎ Xiǎojūn), a son of a military official who roams around Beijing during one summer. He falls in love with a young woman named Mi Lan (S: 米 兰, T: 米 蘭, P: Mǐ Lán).
The film version is titled In the Heat of the Sun.
Song Wen wrote Wild Animals, a graphic novel version. Yen Press publishes the graphic novel version in English.