The definition of 'knowledge' is 'a justified true belief'. Philosophers of science took a few centuries to arrive at this definition. The reasoning on which it is based is that knowledge is a 'belief' because a belief is defined as 'conviction of the truth of some statement' and is related to the verb 'to believe', which means 'to hold something as true' or 'to give credence that something is true'. Because science does not deal with revelations or their interpretation, the justification of holding a particular belief can only be found in evidence, which thus makes it a 'true belief'. Finally, as many things are seen by people and taken as evidence (even if not true -think of Cold Fusion), the belief and the evidence for it must be 'justified'. Justification is found in an entire corpus of other, related, evidence.Ecologists have been studying the African buffalo in the wild for about 70 years. Before that time, most knowledge came from hunters, and with hindsight it is reasonable to assume that the information so gathered was often more closely related to storytelling than to what we consider science. Prins and Sinclair (2013) and Cornélis et al. (2014) provide good recent summaries of what we think we know about the African buffalo. New knowledge added since the publication of these works is reported in the different chapters of the present book. We dare to assert that with this book and all of the publications referred to in it, the African buffalo is now the best-known animal of all Bovidae, so even better known than the American bison (Bison bison), the European wisent (B. bonasus) or any antelope, wild sheep, or goat. Are there other terrestrial wild mammals that are better known than the African