This week on Break It Down: The discovery of some fossilized human teeth reveals the oldest known members of our genus weren’t alone; their neighbors were a species we’ve never found before. A world-first study reveals that sex reversal is surprisingly common in wild Australian birds. A law of abbreviation that mysteriously fits all human languages also applies to bird song from several species. Orange crocodiles lurking deep within caves in Central Africa have the potential to become a new dwarf species. The lack of a standardized definition is holding back long COVID research. And has anybody ever died by getting hit by a meteorite? The records show: just one.   So, sit back, relax, and let’s Break It Down…   Links: New human species HUMAN with Ella Al-Shamahi Tunnel of bones Sex reversal in wild birds Zipf’s law applies to birds Orange crocodiles Defining long COVID Death by meteorite Why do we feel pain? Interview with Chris Hemsworth and Dr BJ Miller The Big Questions – Will We Ever Get A Universal Flu Vaccine? We Have Questions