Cacti spines, snake fangs, snail love darts – oh my! How function drives the evolution of nature’s puncture tools
Read More 4 minute read History 1.5 million-year-old bone tools discovered in Tanzania rewrite the history of human evolution Jackson K. Njau, Indiana University The ancestors of humans started making tools about 3.3 million years ago. First… byJackson NjauMay 6, 2025