Summary: Evidence from bone growth now suggests that <em>T. rex</em> and its kin had the best of both worlds. Their muscles and nerves fired fast like ours, but they burned energy slowly, more like lizards do.
Summary: Evidence from bone growth now suggests that <em>T. rex</em> and its kin had the best of both worlds. Their muscles and nerves fired fast like ours, but they burned energy slowly, more like lizards do.