Gavin Van Horn

Chicago is not defined solely by its human residents. It’s a city with a living, evolving "ecological web of interactions" between man and animal, according to Gavin Van Horn. He joins "Chicago Tonight" to talk about "City Creatures," a book which details urban wildlife history through essays, poetry, photography and paintings.

More than a decade after Chicago Housing Authority demolitions, how are displaced residents affecting their new neighborhoods? A new study may have answers.