The Yellowback Wrasse (Thalassoma amblycephalum) is a striking marine fish celebrated for its vivid coloration and unique appearance. Native to the Indo-Pacific region, this wrasse features a bright yellow back and contrasting body colors that can include shades of blue, green, and purple. The Yellowback Wrasse is known for its lively and active nature, often seen darting among coral reefs and rocky outcrops.