A cephalopod incubator built from a soda bottle (left) at the Marine Biological Laboratory in Woods Hole, Mass. Inside, there are embryos of flamboyant cuttlefish, a particularly colorful species. A close-up view (right) shows flamboyant cuttlefish embryos.

A cephalopod incubator built from a soda bottle (left) at the Marine Biological Laboratory in Woods Hole, Mass. Inside, there are embryos of flamboyant cuttlefish, a particularly colorful species. A close-up view (right) shows flamboyant cuttlefish embryos.