Aquatic Images, a video school, has unveiled a breathtaking clip of a whale shark gliding through the Gulf of Thailand near the coast of Ko Tao. The massive creature is surrounded by remora fish, which clean bacteria and parasites off their host in exchange for an easy ride and food. The video offers a unique opportunity to study this particular species, characterized by its distinctive white polka-dot coat. This marks the second time in recent years that Aquatic Images has encountered the “gentle giant,” and you can find more of their stunning underwater footage on YouTube.