Why dont slugs have shells?
I know they are different animals I just think its odd that they are so similar and yet snails grow shells and slugs dont…do slugs move faster to make up for not being able to hide? What are snail shells even for if slugs seem to do fine in the same environment without them? It blows my mind how crazy life on earth is..worms have 5 hearts and yet no lungs..whats up with that?
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