Mexican researchers presented a collection of more than 46,000 mammal specimens preserved in different ways, many of them extinct, with the aim of publishing the inventory and disseminating knowledge about them in the coming years.

The National Mammal Collection is the biggest and oldest in Latin America and “keeps growing, because there are still unexplored parts of the country,” curator Fernando Cervantes Reza said in a communique.

The collection also includes species from Europe, he said.