This species can attain 30 centimeters in diameter and reside between 1,600 and 4,000 meters deep. Its biology baffles specialists as a result of it doesn’t fairly match the foundations that outline anemones and corals. Since its discovery, scientists have struggled to categorise it, and its evolutionary origin stays unsure.
Earlier than the study, there was nothing linking the golden orb to the large anemone. The report particulars that an preliminary examination discovered spirocytes—ultra-specialized cells that solely cnidarians (the group of animals made up of anemones, corals, and jellyfish) have. This discovering dominated out the likelihood that it was an egg or a biofilm, as initially thought.
The workforce then sequenced the DNA of the fabric to seek for matches in databases. The whole mitochondrial genomes confirmed a 99.9 p.c match to Relicanthus daphneae. The proof pointed to the orb being a part of a uncommon and poorly documented anemone. Nonetheless, the stays didn’t match any recognized constructions of this species or different anemones.
To unravel the riddle, the researchers revisited a specimen collected years earlier and studied it once more. They discovered fragments of a multi-laminated, golden cuticle the anemone had produced round its base. They then checked out reside specimens and found that, because it strikes alongside the underside, R. daphneae leaves behind this cuticle, which stays on the rocks till it disintegrates or is buried.
