Giraffes divided into 4 species, not one: Study
A recent study of giraffe genetics has revealed that there are four species of giraffe, unlike previous thinking that the world's tallest mammal is a single species divided into several sub-species. The four groups have not exchanged genetic material for millions of years. Notably, world giraffe population has declined by 40% in the last 15 years, with 90,000 specimens left.