Researchers: “The alternative candidates for our most distant animal relatives are the comb jellies: beautiful, transparent, globe-shaped animals named after the shimmering comb-rows of cilia they beat to propel themselves through the water.”
Remote vehicles and autonomous vehicles may have a huge role to play in exploring the vast proportion of the ocean that is currently largely unknown. We will probably see stranger stuff yet.
Both groups of life forms are at least 500 million years old. Using a bigger data set, this group of researchers favors the sponges. But we surely haven’t heard the last of it.