3D-printed shell halves allowed researchers to peek inside the cichlid's home and observe the behavior of the mother and her fry during brood care.

Shell-dwelling cichlids are known for their remarkable parental care, raising their young in abandoned snail shells.

Snails have a soft, unsegmented body that is long, moist, and slimy. The body is normally protected by a hard shell. The ...

A team at the Max Planck Institute for Biological Intelligence used 3D-printed snail shells to find out what happens inside. The young and the mother each follow individual but synchronized ...