A case against seeing humans as separate from the rest of life
In a new discussion around her book Humans: The evolution of a species, biological anthropologist and broadcaster Alice Roberts makes a point that is at once simple and still culturally disruptive: humans should be understood as animals, not as beings somehow detached from the rest of evolutionary history.
That argument is not presented as a provocation for its own sake. In the interview, Roberts describes it as the product of scientific training and teaching experience, particularly a period when she moved from teaching human anatomy to also teaching in a veterinary setting. Looking at a lamb’s heart, she says, changed how she understood human bodies, helping her see people not as exceptional creations outside biology, but as another mammal inside it.
What changes when humans are treated as another animal
Roberts’s point is not that humans are uninteresting or trivial in evolutionary terms. Quite the opposite. Her argument is that understanding our species becomes more coherent when it begins with continuity rather than separation. Human anatomy, she says, preserves an extraordinarily long record of descent.
In the interview, Roberts traces that continuity across multiple scales. The biochemistry inside human cells reaches back to the earliest single-celled creatures in ancient oceans. The structure of arms and legs reaches back roughly 360 million years to the first amphibians moving onto land, when fins became limbs. Bones, organs, and developmental changes are not isolated facts in this view. They are historical evidence.
That perspective shifts the meaning of anatomy. A skeleton is not only a functional frame for a living person. It is also a record of evolutionary inheritance. The same is true of organs and cellular processes. Roberts’s framing turns the human body into a layered archive rather than a static design.
The tension inside human exceptionalism
The interview does not deny that Homo sapiens has unusual traits. Roberts acknowledges the obvious question: if humans are just another animal, why do we walk on two legs, build complex societies, and occupy nearly every habitat from jungle to Arctic wasteland? The answer, implied through the conversation, is that human distinctiveness is real but does not require metaphysical separation from the rest of life.
This matters because popular debates often treat the issue as binary. Either humans are utterly unlike other animals, or human achievements must be minimized. Roberts’s evolutionary framing rejects both extremes. It leaves room for the species’ extraordinary ecological reach while insisting that the route to that reach still runs through ordinary biological descent.
That stance has a practical scientific advantage as well. It makes comparison central rather than secondary. When humans are studied as mammals among mammals, similarities become clues rather than inconveniences. Development, physiology, and morphology can be interpreted in a broader context, which often sharpens rather than weakens explanations.
The body as evidence
One of the strongest aspects of Roberts’s account is how physical and specific it is. She does not rely on abstraction alone. Instead, she points to the body as the place where evolutionary history is most directly legible. Limbs can be mapped back through deep time. Organs preserve developmental transitions. Cells carry chemistry that predates animals altogether.
That emphasis helps explain why anthropology, anatomy, archaeology, and palaeopathology can all sit within the same intellectual project. Human origins are not confined to fossils or genes. They are written across living structure as well. The body is not merely the product of evolution. It is one of evolution’s active records.
The interview also hints at the emotional force of this work. Roberts recalls laying out the skeleton of Homo floresiensis and feeling that it was profoundly human and yet not. That sort of reaction captures the scientific and philosophical challenge of human evolution: the closer the comparisons get, the harder it becomes to preserve easy boundaries between us and other forms of life, living or extinct.
Why this still matters outside the lab
Roberts’s argument lands in a cultural moment where human identity is frequently discussed through technology, intelligence, and uniqueness. Against that background, insisting that humans are animals can sound almost reductive. But the interview suggests the opposite. Seeing ourselves inside evolution enlarges the story. It connects people not only to primates or mammals, but to much older biological lineages and transitions.
That does not erase culture, language, or history. It situates them. It says that whatever is distinctive about humans emerged from bodies, behaviors, and environmental struggles that remain part of nature rather than outside it.
A scientific posture with broader consequences
The value of Roberts’s view is that it resists flattery without diminishing complexity. Humans can be remarkable without being exempt. We can have unusual cognitive and social capacities while still being products of the same evolutionary processes that shaped hearts, limbs, cells, and skeletons across the tree of life.
That is why her argument endures. Treating humans as animals is not a gesture of self-lowering. It is a methodological discipline and, in many ways, a clearer account of who we are. The more completely science traces our body and history into deep time, the harder it becomes to imagine that understanding ourselves requires standing apart from the living world that made us.
This article is based on reporting by New Scientist. Read the original article.
Originally published on newscientist.com
