Earth was once frequented not only by humans but also by giant mammals ... Previous ice ages and interglacials did not selectively wipe out megafauna, despite causing extinctions in some regions ...

Some megafauna, like the giant, horned turtle-type creature Ninjemys oweni, died out before humans arrived in Australia. Travouillon has found megafauna fossils, including Diprotodon, that have ...

The studies reveal that human activities have significantly altered Madagascar's landscapes and ecosystems, often leading to the decline of its megafauna and changes in vegetation dynamics.