Meanwhile, one group of a related species — Neanderthals — developed a mutation that could have spared them the smell of their own body odors.
It's a popular idea that humans have a bad sense of smell, as compared with dogs, for instance.
Will Oliver/PA Images/Getty"We have to really understand ourselves within our own context," rather than comparing humans to dogs or monkeys, as previous research on smell receptors has done, Hoover said.
To Hoover's surprise, the Neanderthals, Denisovan, and humans all appeared to have the same repertoire of smells.
More research like it, with more samples of ancient genomes, could reveal a clearer picture of Neanderthal and Denisovan life.