Ruy Caldas: From Grande sertão to plant biochemistry por Fabrício Marques
New cultivation techniques seek to curb the spread of citrus disease por Carlos Fioravanti
Rodolfo Hoffmann: Calculating our inequalities por Ana Paula Orlandi and Ricardo Balthazar
Disputed territories por Christina Queiroz
The Amazon revealed por Maria Guimaraes, reporting from Manaus
Stings neutralized por Suzel Tunes