Hi, I'm also applying to Grinnell by the way. :-)
I like your idea of the bush mammoth! It sounds original, wish I had something as catchy as that. A few suggestions:
In the early hours of Grinnell,
Hours should be
times here.
Those setbacks were seen and used as opportunities to improve Grinnell, which led to its outstanding academic programs, the beautiful campus and the wealth of opportunities for students .
A little description of what kind of opportunities are offered would be nice.
Hmm, I'd also suggest you try tying things back to the Loxodonta africana at the end.
Good luck!