Annelida
The annelids, scientifically referred to as segmented worms, represent a significant phylum comprising an impressive number of over 22,000 extant species. These include well-recognized organisms such as ragworms, earthworms, and leeches. Annelids have successfully thrived in diverse ecological settings, displaying remarkable adaptability. Some species inhabit exclusive marine habitats like tidal zones and hydrothermal vents, while others flourish in freshwater environments. Furthermore, numerous annelid species can be found thriving in moist terrestrial ecosystems.
