Show by subject Colours of the nature: Butterflies Composition of colors and design in butterflies. Defensive habits Defensive habits in mammals, birds, reptiles and crustaceans. Portraits I Portraits of vertebrates and insects taken in free nature of South America, North America and Europe. Plants Diversity of forms in plants. Colours of the nature: Birds Range of colors in birds. Periodic plumage changes in birds Recently added Periodic plumage changes in birds Individual variability