The Answer to Stig’s Animal of the Day

Hey Fan Club Buddies,

Did you guess what Stig’s Animal of the Day was?

Here is the description: 

I found this in my garden but it can also be found in ditches, deserts and in the depths of the sea! It is very small and has a shell on its back and moves by sliding along the ground. They eat plants and algae from surfaces. Can you guess what it is?

The animal Stig was describing was … a snail!