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The ability of sponge cells to reaggregate and reconstruct intact functional organism is known for more than 100 years. This… Expand The ability to regulate oxygen consumption evolved in ancestral animals and is intrinsically linked to iron metabolism. The iron… Expand The iron-containing protein neuroglobin (Ngb) involved in the transport of oxygen is generally considered the precursor of all… Expand BackgroundWnt proteins are secreted signalling molecules found in all animal phyla. In bilaterian animals, including humans, Wnt… Expand Recent surveys of sponges occurring on Caribbean mangrove roots demonstrated the presence of a skeleton-less sponge of the genus… Expand Halisarca harmelini sp. nov. is described from the northwestern Mediterranean Sea at depths between 15–65 m from coralligenous… Expand The behaviour and metamorphosis of larvae in Halisarca dujardini from the White Sea were studied using immunocytochemical methods… Expand Embryogenesis of Halisarca dujardini from the White Sea (Russia) was studied by light and transmission electron microscopy. The… Expand The reproductive development of the Demospongiae species Halisarca dujardini (Halisarcida), Myxilla incrustans and Iophon piceus… Expand