Scientists reclassify giraffes into four distinct species, up from one

Scientists have reclassified giraffes into four distinct species, up from one. Conservationists say this greater understanding of giraffe taxonomy will allow for targeted conservation efforts, specific to each species’ needs, prioritising those that are critically endangered. 

To the uninitiated, most giraffes probably look the same. But researchers now say there were evolutionary differences between Africa’s giraffe populations,…