Nautilus slide in 2

This Nautilus cut into 2 is the essence of the cabinet of curiosity. Inside we see that its geometry perfectly resumes the golden ratio. It can fill its partitions with gas and so moving up or down. It is on this principle that humans created the submarines. Another striking fact, these animals have little changed morphologically for 400 million years and we find him today as fossils. size : 14cm x 14cm x 28cm