¿Qué puedo hacer?
Acerca de este recurso...
When North and South America joined at Panama, animals that had been separated for millions of years were in contact. North American mammals, which gave live birth, outcompeted the South American marsupials.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).
Fecha publicación: 1.10.2015
Se respeta la licencia original del recurso.