Juergen Freund / Coleman shrimp (Periclimenes colemani) on a Fire urchin (Asthenosoma varium) Moluccas Islands, Indonesia.

Ian Coleman / Illustration of Grey reef shark (Carcharhinus amblyrhynchos), Carcharhinidae. Endangered / threatened species.

Ian Coleman / Illustration of Basking shark (Cetorhinus maximus) feeding. Endangered / threatened species.

Ian Coleman / Illustration of Common thresher shark (Alopias vulpinus), Alopiidae. Endangered / threatened species.

Ian Coleman / Illustration of Great white shark (Carcharodon carcharias), Lamnidae. Endangered / threatened species.

David Hall / Sea urchin shrimp on venemous urchin {Periclimenes colemani & Asthenosoma} Papua New Guinea

Bryan and Cherry Alexander / Inuit hunter refuelling a Coleman stove at his camp. Igloolik, Nunavut, Canada, 1990.

Birgitte Wilms / Coleman's Shrimp (Periclimenes colemani) camouflaged on Fire Urchin (Asthenosoma varium), Indonesia

Chris Newbert / Coleman's Shrimp (Periclimenes colemani) on Fire Urchin (Asthenosoma varium), Indonesia

Chris Newbert / Coleman's Shrimp (Periclimenes colemani) and Adam's Urchin Crab (Zebrida adamsii) on Fire Urchin (Asthenosoma varium), Indonesia

Birgitte Wilms / Coleman's Shrimp (Periclimenes colemani) male and female on Fire Urchin (Asthenosoma varium) 90 feet deep, Indonesia

David Hall / Sea urchin shrimp (Periclimines colemani) on sea urchin, Indonesia - commensalism