In the world of animals, only sponges, Latin name phylum Porifera have asymmetrical body plans. When that happens in different animals, it is a rarity.
Yes, some animals start life with one type of body symmetry, but develop a different one as adults. For example, sea stars are classified as bilaterally symmetrical, but their adult form is radially symmetrical.
With that in mind, we rarely see other animals with an asymmetrical body plan. That is why Jeremy is such a fascinating story. He is a one in a million snail, whose shell coiled to the left rather than to the right.
Watch the amazing documentary about Jeremy, and some other animals that have had rare asymmetrical body.
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