by Darwin, Charles, (1809-1882) | Darwin, Francis | García Ballester, Luis.
by Fundación Banco Santander.
by Bork, Bert van | Conkling, Woody | Backstrom, Ulf | Enciclopedia Británica.
by Russell, Bruce J | Denning, J. David | Coronet International.
by Darwin, Charles | Burkhardt, Frederick | Rubio Díez, Ana María.
by Grant, Peter R, (1936-) | Grant, Rosemary.
by Papp, Desiderio | Darwin, Charles, (1809-1882).
by Howard, Jonathan.
by García González, Armando | Consejo Superior de Investigaciones Científicas (España).
by Cuvi, Nicolás | Blanco Laserna, David | Fraguas González, Raquel | Fernández Villalba, Violeta.
by Paz, Rissa de la | Farley, George.
by Manning, Mick.
by Darwin, Charles, (1809-1882) | Leakey, Richard E.
by Darwin, Charles | Leakey, Richard E.
by Muñoz Puelles, Vicente, (1948-).
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