How Do Electric Eels Produce Electricity?
Electric eels produce electricity using specialized cells called electrocytes, which are arranged in large stacks inside their electric organs. When nerve signals activate these cells, charged ions move across their membranes, creating small electrical differences. Thousands of electrocytes working...
Do Fish Get Thirsty? How Fish Drink Water
Fish need water to survive, but scientists do not know whether they experience thirst in the same subjective way humans do. Most marine bony fish regularly drink seawater because they lose water to their salty surroundings. Freshwater bony fish face the opposite problem: water continually enters the...
