Human: Is it true that I can't see my veins in my hand because they're hidden by fat? Assistant: 
Yes, this is a common misconception. In reality, the skin of your hands and feet is very thin, so you can actually see some of your veins through it. However, there are many more veins under the surface of your skin than on the surface, so if you were to look closely at your hands or feet, you might not be able to see all of them.