On the ground floor of the Science building you can find many representatives of life in our oceans: from sponges and corals to crustaceans, fish and shorebirds, and especially thousands of marine molluscs from the extraordinary José del Río collection. A quick glance at this floor of the building will give us an idea of the diversity of forms of this group of invertebrates through the shells with which they protect themselves in life and which are left behind after their death.

The third floor is dedicated to terrestrial invertebrates, with numerous entomological boxes showing a small representation of the most varied forms and colours of tropical species of butterflies. We can also enjoy a large number of insects and some of the largest known species of arachnids. 

The fourth and fifth floors deal with diversity and evolution. There are several showcases dedicated to the kinship relationships of amphibians, reptiles, birds and mammals, with numerous examples of morphological adaptations to movement in the terrestrial, aquatic and aerial environments, as well as other curiosities of the animal kingdom and its interaction with humans.