İğneada Floodplain Forests National Park mixed wood. Vine species are the most distinct plants of the forest. Sprecies of European ash ("Fraxinus excelsior"), oak ("Quercus"), alder ("(Alnus"), beech ("Fagaceae") and maple ("Aceraceae") are trees found in the national park forest. Trout ("Oncorhynchus"), smelt ("Osmeridae"), grey mullet ("Mugilidae") are fish species of the national park. Birds like white-tailed eagle ("Haliaeetus albicilla"), European green woodpecker ("Picus viridis"), owl ("Strigiformes"), grey heron ("Ardea cinerea"), European cuckoo ("Cuculus canorus"), kingfisher ("Coraciiformes"), black stork ("Ciconia nigra)") and hoopoe ("Upupa epops") are observed in the area. Among the mammals are wildcat ("Felis silvestris"), wild boar ("Sus scrofa"), hare ("Lepus"), European pine
Evolution of birds debate. There is significant evidence that birds emerged within theropod dinosaurs, specifically, that birds are members of Maniraptora, a group of theropods which includes dromaeosaurs and oviraptorids, among others. As more non-avian theropods that are closely related to birds are discovered, the formerly clear distinction between non-birds and birds becomes less so. This was noted already in the 19th century, with Thomas Huxley writing: We have had to stretch the definition of the class of birds so as to include birds with teeth and birds with paw-like fore limbs and long tails. There is no evidence that "Compsognathus" possessed feathers;