renamed "header1.html" to "header.html" and moved it from 'index' to 'pages'.  updated new "header" path in all html files
disable the apps 'index' and 'search'  on settings.py
created "list_species.html" template that replaced previous "index.html" template that used to show the list of species
made "index.html" to be the Home template (instead the one used to be in the 'index' app).
updated "urls.py" and "views.py" after the changes of "index.html", "list_species.html" and disabling the app 'index'.
added id="topheader" to the "header.html" first div
Updated "list species" page. (function added in models.py + changes needed in urls.py and views.py)