Did Small-Brained Human Cousins Practice Burial Rituals?

Fossil remains of Homo naledi, an ancient human cousin with a small brain, were found in underground caves in South Africa a decade ago. Researchers have now found evidence that the species was capable of complex behavior that so far has only been seen in those with bigger brains, including intentional burial sites and marks carved into cave walls. These findings challenge what we know about how humans evolved their complex thinking and raise further questions about human evolution.