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Humans

Unusually tiny hominin deepens mystery of our Paranthropus cousin

Paranthropus was an ape-like hominin that survived alongside early humans for more than a million years. A fossilised leg belonging to a strikingly small member of the group raises questions about how it did so

By Colin Barras

31 March 2025

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Paranthropus Robustus

Tom McHugh Science Photo Library

A fossilised left leg unearthed in South Africa belongs to one of the smallest adult hominins ever discovered – smaller even than the so-called “hobbit”, Homo floresiensis.

The diminutive hominin was a member of the species Paranthropus robustus. This was one of several species of Paranthropus, a group of ape-like hominins that shared the African landscape with the earliest representatives of our human genus, Homo, between about 2.7 and 1.2 million years ago. Paranthropus had heavily built skulls that housed small brains and large teeth – which some species appear to have used…

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