F4, F.IV, F04, F 4, F.4 or F-4 may refer to.
In evolutionary biology, people often speak of the four Fs which are said to be the four basic and most primal drives (motivations or instincts) that animals (including humans) are evolutionarily adapted to have, follow, and achieve: ''fighting'', ''fleeing'', ''feeding'' and ''fucking''.
The Four Fs is an informal term and mnemonic in English common law for fruit, fungi, flowers and foliage.
Friedrich Ludwig Jahn (11 August 1778 – 15 October 1852) was a German gymnastics educator and nationalist.
4F or 4-F may refer to.