Marine life individuals per square meter and accounting for about 80% of all individual animals on earth, their diversity of life cycles, and their presence at various trophic levels point at an important role in many ecosystems. Echinoderms (Greek for "spiny skin") is a phylum which contains only marine invertebrates. The adults are recognizable by their radial symmetry (usually five-point) and include starfish, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies. Echinoderms are found at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 7000 living species, making it the second-largest
Starfish Project Starfish Project The Starfish Project is a UK-based not-for-profit therapy programme which helps people who stammer or stutter to overcome their speech through the use of diaphragmatic breathing (also known as "costal breathing"). The programme also teaches participants to reassess negative emotions surrounding their stammering through the use of avoidance reduction therapy (see stuttering therapy). Participants attend a three-day residential course near Hailsham in the UK during which a diaphragmatic breathing technique and non-avoidance strategies are taught. Following this initial course, participants are able to attend additional follow-up courses at the same venue without charge from the Starfish Project as