Fish are all over the place. Really. There’s water everywhere, right? And in that water are a bunch of…fish. Some are small, some are large. Some are kinda odd looking. Some glow in the dark. There are fish that live down so deep, we haven’t even discovered them yet! Here are just a few of the cool facts about fish that we found.
- Relative to their body size, fish have small brains compared to most other animals.
- Fish are vertebrate animals that live in the water. Vertebrate means they have a spinal cord surrounded by bone or cartilage.
- Fish have gills that extract oxygen from the water around them.
- Fish are covered in scales which are often covered in a layer of slime to help their movement through water.