Rays are adapted to life on the seabed. They are flat and have highly developed pectoral fins, which are joined in the front of their head. This allows them to glide through the water.
All animals cells can generate small electric charges. In some fish, special cells have evolved so that they can generate much larger electric charges. These cells came from nerve cells and from muscle cells that can no longer contract.
When something steps on a ray, when it feels dangers or when it hunting for prey, it will whip its tail. Instantly, the voltage of all the electroplates combines to produce electric charge that sometimes can be strong enough to stun a human.
Electric fish create waves of electric currents in the water around them. To do this, they make small, rapid discharges, up to over a thousand per second. When something enters this electric field, it makes a change in the electric current that the fish can detect because of its sensitivity to electric differences. Electric fish can be 500,000 times more sensitive to electricity than non-electric fish. This ability is useful at night or in muddy waters where freshwater electric fish live.
I learned a ton of new things about rays. I learned about how they live when they are small and how they live when they are bigger. I learned about the way they protect themselves and how their tails can be cut of to make sure they can't harm anyone.