Rays
This reading profile brings together 2 source-linked articles that reference rays.
Fauna does not yet have a full sourced identification profile for this name, so this page keeps the relevant reading together without inventing missing species detail.Source-linked reading
- Field guideHow sharks sense electric fieldsSharks sample tiny voltage differences through the ampullae of Lorenzini. Arrays of surface pores connect to sensory chambers, letting the nervous system compare signals across space and distinguish external fields from some self-generated activity.
- Field guideHow fish breathe with gillsGills pair a large, delicate exchange surface with controlled flows of water and blood. Closely spaced lamellae shorten diffusion distance, while opposing flows can preserve an oxygen gradient across much of the surface.