Andaman sea, Satun, Thailand. Two nudibranchs (Hypselodoris pulchella) seem to investigate each other on a wire coral (Junceella sp.) at Hin Chao Kam, a pinnacle located near Koh Bulon Lae, in Satun province, Thailand. Coral reefs provide critical habitats for countless marine life, ranging from large predators such as reef sharks to the small critters like these nudibranchs. These reefs help support tourism and the local fishing industry of the region.