|Source: Wikimedia Commons.|
Photographer: Johnny Liunggren.
Loxodonta africana, the savannah dwellers, are much larger and in some cases twice as heavy as Loxodonta cyclotis, the forest dwellers. The debate about whether the elephants were separate species has been going on for at least a decade. The research shows that the two species diverged from their common ancestor around the same time that humans and chimpanzees evolved. How long ago the species split was a surprise for the researchers.