When walking a busy street, people tend to bump into one another, so how do these fish move in such unison? 🤔
On the sides of a fish, you might notice a slight indentation that runs from the head to tail. This organ is known as the lateral line, and it allows fish, such as these anchovies, to pick up on movements and pressure changes around the animal's body. For example, if a predator darts towards a school of fish, and only one fish notices the predator, the defensive maneuver of the attentive fish will be registered by the lateral lines of the fish surrounding it, causing a chain reaction of cohesive, schooling movement! 🐟🐟🐟
Now, think about this: what other "hidden abilities" do fish have that we can't see with a quick glimpse of the naked eye? Post your findings in the comments below!