Yes. MythBusters did an episode on it.
Yes, it can. But the owner must require patience, ALOT of it. In fact, in 7th grade, I tried it for my science project. It took 5 months. You have to coax it to get through the maze with some treats, such as food. Practice alot.
Yes.
What else would you expect them to swim in? Of course Goldfish swim in water.
The same reason you run more actively with air in the atmosphere. Without air, and therefore oxygen, you and the goldfish will suffocate, making it difficult to swim or run.You take in oxygen through your lungs; the goldfish takes in oxygen through its gills.
You have to swim through an underwater maze. Pop bubbles for oxygen.
They swim,eat,have gills, and are cold-blooded
No
A damaged swim bladder.
because they are fish
NO. Unless there in ranch
what maze
Anywhere :)