And all of a sudden the front page has got a new structure: All entries to galleries with marine animals points to a gallery with one single class of animals. For two classes (Actinopterygii and Anthozoa) the appointed gallery is a menu of sub-galleries of orders of animals; for one class (Actinopterygii) there are also sub-sub-galleries for families.

The gallery with divers is the one exception, and is not (yet) forced into a gallery of mammals. 😉