He is a graduate faculty member in zoology at the Museu Paraense Emílio Goeldi, and animal sciences at Federal University of Pará State (UFPA), in Belém .
Den Helder | Carlos Queiroz | Protógenes Queiroz | Hélder Câmara | Willemsoord, Den Helder | Hélder Reis | John Helder Wedge | Hélder Macedo | Helder Antunes | Anne-Marie Helder |