http://www.slideshare.net/sergiomorais7/extino-e-conservao-de-especies-diana-lopes-11
http://www.eb1-porto-n42.rcts.pt/prof_arminda.htm
http://tv1.rtp.pt/programas-rtp/index.php?p_id=26498&e_id=1&c_id=1&dif=tv&hora=21:00&dia=19-06-2010
http://www.google.pt/images?hl=en&lr=lang_pt&newwindow=1&client=firefox-a&rls=org.mozilla:en-US:official&q=kuala%20Austr%C3%A1lia%20-Lumpur%20-Mal%C3%A1sia&um=1&ie=UTF-8&source=og&sa=N&tab=wi&biw=1009&bih=561
V. M.
