Look at the shell, the protocol, which at the moment the shell is still very thin.

That's because the snail hasn't eaten lots of food with calcium in it yet to make the shell hard.

And can you see the slippery mucus underneath the baby snails body?

When something slippery, we say that it has less friction a bit like this.

If I rub my hands together, friction stopped them from moving too quickly.

But if I add some hand lotion, look, the slippery lotion makes it much easier to move them back and forward, just like the snail's foot and the slippery mucus help the snail to move forward.

But to understand how the foot and the mucus work together, I think we should use one of my special cameras.

Chris has put a garden snail on a clear sheet, and I've attached this to my special camera.

It's called a pro blends, and it's going to help us see underneath that the snail's foot in more detail.

Okay, Chrissy Wow, that is all of the mucus, and I can see it there.

Oh, it makes the surface slippery, so it's easier for the snail to glide along.

Oh, this is incredible.

Mhm.

Mm hmm.

Mhm.

But a snail needs more than mucus to move.

Can you see the snail's body ripples as it moves forward?

Those ripples are the snails.

Mussels working to help it move.

The snail is squeezing and relaxing its muscles over and over.

Wow, Watch more on BBC I player.