This video says about itself:
Selections from the the film Proteus, a documentary concerning the life, work, and philosophy of Ernst Haeckel, a 19th century naturalist. The film tells of the man’s character and influences while using his detailed engravings of Radiolaria, single-celled marine organisms, to make animated progressions.
The museum writes about it (translated):
Summer at Naturalis is dominated by marine animals. Meet the fascinating underwater world of Professor Ernst Haeckel. His brilliant scientific illustrations are the basis for cooperation between the National Glass Museum and Naturalis.
Until September 6, 2014
The exhibition Marine Animals brings nature, science and art together in an event with drawing activities, a special design contest and live glassblowing. The glass objects by artists and designers such as Andries Copier and Jan Taminiau are presented in addition to the natural history objects of Naturalis, surrounded by Haeckel’s drawings. Are you inspired as well? Draw a jellyfish, starfish or seashell and marvel at your lifelike drawing!