Inter-Species Differences in Wound-Healing Rate: A Comparative Study Involving Primates and Rodents

The study investigates wound-healing rates across species, revealing that humans heal wounds approximately three times slower than non-human primates and rodents, with humans healing at 0.25 mm/day compared to 0.613 mm/day in others. This slower rate in humans may be due to evolutionary adaptations like increased eccrine sweat glands and reduced hair density, which, while beneficial for thermoregulation, contribute to slower healing. The study suggests that these adaptations are unique to humans and highlights the importance of further research into the evolutionary mechanisms and biological processes of wound healing across species.