I is for Immortal Jellyfish I is for Immortal Jellyfish I is for Immortal Jellyfish, a wonder of the Sea. If she’s not eaten, she can live an eternity. In the watery world below, these jellyfish twirl and flow with watery blood, no brain or heart, they are a tentacled cartwheeling work of art! Share this:FacebookLinkedInTumblrMastodonXLike Loading...