New Analysis Identifies Four Distinct Giraffe Species in Africa

A recent photo, shared by Michael Brown from the International Union for Conservation of Nature (IUCN), showcases a Masai giraffe in Tanzania’s Lake Mburo National Park. A scientific analysis released on Thursday identifies four separate species of giraffes in Africa, a finding that alters the long-standing assumption of them being a single species.

According to researchers, advancements in genetic analysis and significant studies over the last decade have prompted the IUCN to officially categorize giraffes into Northern giraffes, reticulated giraffes, Masai giraffes, and Southern giraffes. Michael Brown, who led the recent assessment, emphasizes the importance of distinguishing between the species due to their varying population sizes, threats, and conservation needs. He pointed out that combining all giraffes under one umbrella complicates the understanding of their specific challenges.

The Northern giraffes are particularly vulnerable, facing issues like political turmoil and poaching across regions such as the Democratic Republic of Congo and South Sudan. Likewise, Masai giraffes confront threats from habitat destruction as their savanna landscapes are transformed into agricultural land.

Stuart Pimm, an ecologist from Duke University, supports the idea of recognizing different giraffe species, claiming that this decision has been long overdue. Traditional identifications based on their distinctive spots have been eclipsed by modern approaches that involve thorough genetic analysis and anatomical studies, including skull shape evaluation.

Experts have collected genetic samples from over 2,000 giraffes across the continent over the past two decades. Stephanie Fennessy from the Giraffe Conservation Foundation noted that the cost of genome sequencing has dramatically decreased from tens of thousands of dollars to approximately $100, allowing for a broader reach in conservation efforts.

Population studies indicate that the Northern giraffe is currently the most endangered, with only about 7,000 individuals remaining in the wild, labeling it as one of the world’s most threatened large mammals. Southern giraffes are the most numerous, with an estimated population of 69,000, while there are around 21,000 reticulated and 44,000 Masai giraffes left in their natural habitats.

Fennessy highlights that understanding the differences among giraffe species is crucial for tailored conservation strategies, affirming the need for individual protections for each species.