Those are GM "Franken-Tomatoes" being grown for Monsanto or ADM at U of Az. Eat them on your pizzasauce and in 2 years you'll grow a 3rd eye on your belly-button. (.) :)
Only at/in an USA based "Institution of Higher Learning" could you ever dream of getting a Govt. grant to not only build a city out of Lego's blocks but have a webcam devoted to the same too. No wonder college admin's are smart as tree stumps.
When I first started watching this cam, there were small colonies of Crabs along the shore that wandered about, I don't see them now, hopefully it is a seasonal thing and not human activity