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BiologySmalleyed rays are carnivorous fish that prey on small fish that dwell on the sea bottom (3) (8), using their interlocking teeth to grasp and crush the food (3). The weak electrical discharges that rays are capable of producing are thought to be used in interactions with other rays, as electrical activity is more frequent when they are in pairs or groups rather than solitary (6). The smalleyed ray breeds in summer in the English Channel (2), producing eggs encased in a horny oblong case with four stiff, pointed tips (5) (8). A female lays between 54 and 61 eggs each year, depositing the precious capsules in sandy or muddy flats (8).