Juan Manuel Borrero / Illustration of threatened species of Spain : Blue whale (Balenoptera musculus), Brown bear (Ursus arctos), Spanish ibex (Capra pyrenaica hispanica), Bullhead (Cottus gobio), Iberian Rock Lizard (Lace...

Michel Roggo / Freshwater blenny (Salaria / Lipophrys fluviatilis) Europe

Juan Manuel Borrero / Freshwater blenny {Salaria / Blennius fluviatilis} Delta del Ebro NP, Catalonia, Spain,

Juan Manuel Borrero / Freshwater blenny {Salaria fluviatilis} Spain