Hordes of yabbies are trashing rivers in Africa. How did this happen?

In the 1980s and 1990s, the hardy redclaw crayfish was exported from Australia around the world. But escapee yabbies have become a nightmare.

MediaNews muestra el titular y el resumen publicados por el medio. El artículo completo se lee en el sitio del editor. (theconversation.com)