The family Mustelidae includes otters, badgers, minks, wolverines, martens, grisons and weasels, and it arose about 16.1 million years ago, in the early to middle Miocene, and spread mostly in Asia. A multigene DNA study from 2008 placed the American badger, Taxidea, and the honey badger, Mellivora, as the earliest branches of the weasel family tree, each on a single-genus lineage that is sister to all other mustelids.

Appearance misleads here. Honey badgers look like Eurasian badgers, but DNA places Eurasian and hog-nosed badgers, Meles and Arctonyx, in a different part of the mustelid tree. Looking alike does not prove that two animals are closely related. The honey badger genus split from other badgers early, about 12 to 13 million years ago, and forms its own branch. Fossils show honey badgers in Africa from about 12 million years ago, and the oldest record of the species Mellivora capensis, from Kenya, is about 10 million years old.

One 2021 study tested honey badger venom resistance directly, with a laboratory assay called biolayer interferometry. It confirmed that arginine at position 187 reduces binding to alpha-neurotoxins, which had been suggested but never tested. The same study found a new kind of resistance in some snakes: a charge reversal, in which a negatively charged amino acid is replaced by lysine, which is positively charged and so repels the positively charged toxins. The 2021 result measured what had only been suggested before.

Anatomy has begun to get the same treatment. A 2023 computer-modelling study compared the upper arm bones of the honey badger and the American otter. The bones differ in curvature, and the otter bone always showed lower stress under the same loads. Fieldwork, by contrast, is thin. Animal Diversity Web says honey badger reproduction is not well studied beyond one 42-month study in the Kgalagadi Transfrontier National Park, and that large home ranges make tracking and conserving honey badgers exceedingly difficult.

Scientists still argue about some honey badger stories: whether the honeyguide partnership happens, and whether the scent gland stuns bees. A 2023 review asks for field studies and for combining scientific and cultural knowledge. The range has also shrunk. Honey badgers were once found across most of sub-Saharan Africa, Arabia and parts of Asia, and as of November 2026, zoo sheets say they are now rare or extinct across most of that historic range. Even so, the IUCN Red List rated the species Least Concern, as of November 2026, because of its broad range and varied diet.

Words to know

• lineage: line of descent
• assay: lab test
• Miocene: a geologic epoch
• sister: closest relative
• curvature: how bent