Pascal Kobeh / Red-banded shrimp (Alpheus randalli) and Pinkbar goby (Amblyeleotris aurora) symbiotic pair with goby protecting shrimp as it digs. Maldives. Indian Ocean.

Franco Banfi / Banded shrimpgoby (Cryptocentrus cinctus) sharing burrow with Alpheus shrimp (Apheus sp) Cendana Jetty, Waigeo island, Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Fred Bavendam / Barred Shrimp Goby (Cryptocentrus fasciatus) sharing a burrow with a Snapping Shrimp (Alpheus djiboutensis), Lembeh Strait, Indonesia

Fred Bavendam / Yellow Shrimp Goby (Cryptocentrus cinctus) sharing a burrow with a Snapping Shrimp (Alpheus sp), Menjangan Island, Indonesia

Fred Bavendam / Yasha Hase Shrimp Goby (Stonogobiops yasha) sharing a burrow with a Randall's Shrimp (Alpheus randalli), Coral Sea, Australia

Fred Bavendam / Black-rayed Shrimpgoby (Stonogobiops nematodes) pair sharing a burrow with a Randall's Shrimp (Alpheus randalli), Bali, Indonesia

Fred Bavendam / Metallic Shrimp-goby (Amblyeleotris latifasciata) keeps watch while its Snapping Shrimp (Alpheus sp) partner works on their burrow, Bali, Indonesia

Fred Bavendam / Snapping Shrimp (Alpheus sp), Edithburgh, Australia

Fred Bavendam / Pistol Shrimp (Alpheus bidens), Edithburgh, Australia

Fred Bavendam / Spotted Prawn Goby (Amblyeleotris guttata) sharing a burrow with a Find-striped Snapping Shrimp (Alpheus ochrostriatus), Bali, Indonesia

Fred Bavendam / Metallic Shrimp-goby (Amblyeleotris latifasciata) keeping watch while a Snapping Shrimp (Alpheus sp) works on their shared burrow, Bali, Indonesia

Gary Bell/ Oceanwide / Candy-stripe Pistol Shrimp (Alpheus astrinx), Yorke Peninsula, South Australia, Australia