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This thesis is about designing structures that combine the dual functions of mechanical protection and flexibility of motion. The… Expand BackgroundThe family Polypteridae, commonly known as "bichirs", is a lineage that diverged early in the evolutionary history of… Expand Abstract Diplogyrodactylus martini n. g. et sp., a viviparous monogenean, is described from the gills of gray bichir Polypterus… Expand Knowledge of the structure-property-function relationships of dermal scales of armoured fish could enable pathways to improved… Expand Polypteridae (Cladistia) is a family of archaic fishes, confined to African freshwaters. On account of their primitiveness in… Expand The olfactory organ of the Polypteridae (Brachiopterygii) was studied histologically. It differs fundamentally from the olfactory… Expand A bony ganoid squamation is the plesiomorphic type in actinopterygians. During evolution, it was replaced by weak and more… Expand A new cladistic method for the estimation of ancestral areas is based on reversible parsimony in combination with a weighting… Expand L'etude de l'ichtyofaune du Cenomanien de la Formation Wadi Milk (Soudan) a permis la decouverte de quatorze especes de… Expand In order to understand the process of ganoine formation on the ganoid scales, scale regeneration has been studied to overcome the… Expand