Fun fact, orcas are fish! So are humans. Either all vertebrates are fish or fish don’t exist, if you try to define a group of species related to each other as fish.
I believe that would include some amphibians, and possibly sea turtles, depending on how we define it (they can extract oxygen from water, but not enough to rely on that alone)
Fun fact, orcas are fish! So are humans. Either all vertebrates are fish or fish don’t exist, if you try to define a group of species related to each other as fish.
No Such Thing As A Fish
Can we just say the vertebrates breathing in water are fish?
I believe that would include some amphibians, and possibly sea turtles, depending on how we define it (they can extract oxygen from water, but not enough to rely on that alone)
Gills? That’s pretty close already