David Hall / Anemone hermit crab (Dardanus pedunculatus) carrying Anemones (Calliactis polypus) on shell. Mutualism in which anemones are transported to new feeding opportunities whilst providing camouflage and de...

Magnus Lundgren / Wild Wonders of China / Anemone hermit crab (Dardanus pedunculatus) Xiaoliuqiu Island, Taiwan

Pascal Kobeh / Coral hermit crab (Dardanus pedunculatus) with sea anemones on its shell - the anemones get better feeding opportunities from extra mobility, the crab gains extra protection. Sulu Sea, Philippines.

Pascal Kobeh / Coral hermit crab (Dardanus pedunculatus) with sea anemones on its shell - the anemones get better feeding opportunities from extra mobility, the crab gains extra protection. Sulu Sea, Philippines. Me...

David Fleetham / Hermit crab (Dardanus pedunculatus) with Sea anemones (Calliactis polypus) for protection. Tulamben, Bali, Indonesia.

Constantinos Petrinos / Anemone hermit crab (Dardanus pedunculatus) on mooring line carrying sea anemones. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Anemone hermit crab (Dardanus pedunculatus) on mooring line carrying sea anemones. Lembeh Strait, North Sulawesi, Indonesia

Sue Daly / Anemone hermit crab (Pagurus prideaux) attacking another, with Cloak anemones (Adamsia palliata) covering both their shells, Sark, British Channel Islands, UK, October.

Sue Daly / Anemone hermit crab (Pagurus prideaux) sifting gravel on the seabed for food, with a Cloak anemone (Adamsia palliata) covering its shell, Sark, British Channel Islands, UK, October.

Tony Wu / Anemone hermit crab (Dardanus pedunculatus) capturing and eating a mollusc, Lembeh Strait, North Sulawesi, Indonesia.

Pascal Kobeh / Coral hermit crab (Dardanus pedunculatus) with sea anemones on shell, Sulu Sea, Philippines

Pascal Kobeh / Coral hermit crab (Dardanus pedunculatus) with sea anemones on shell, Sulu Sea, Philippines

Georgette Douwma / Hermit crab (Dardanus pedunculatus) Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Hermit crab (Dardanus pedunculatus) with anemones, at Kimbe Bay, West New Britain, Papua New Guinea.

Juergen Freund / Anemone hermit crab (Dardanus pedunculatus) with anemone on its shell, walking on the sandy sea bed. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Anemone hermit cab (Dardanus pedunculatus) with several anemones on its shell. Lembeh Strait, North Sulawesi, Indonesia.

GEORGETTE DOUWMA / Anemone hermit crab (Dardanus pedunculatus) with shell covered in debris, Komodo, Indonesia

Nature Production / Anemone Hermit Crab {Dardanus pedunculatus} camouflaged with sea anemones {Actiniae} on its shell, Izu, Shizuoka, Japan

Fred Bavendam / Anemone Hermit Crab (Dardanus pedunculatus) carrying Sea Anemones on its shell for protection from predators, Bali, Indonesia

Fred Bavendam / Anemone Hermit Crab (Dardanus pedunculatus) carries Sea Anemones on its shell for protection from predators, Bali, Indonesia

Fred Bavendam / Anemone Hermit Crab (Dardanus pedunculatus) with Sea Anemones on its shell, Manado, North Sulawesi, Indonesia

Juergen Freund / Anemone hermit crab (Dardanus pedunculatus) and anemone. Indo-Pacific Ocean

Juergen Freund / Anemone hermit crab with anemone attached, Indo-Pacific Ocean.

Gary Bell/ Oceanwide / Anemone Hermit Crab (Dardanus pedunculatus) covered with sea anemones used for camouflage, Great Barrier Reef, Australia

Nature Production / Anemone Hermit Crab {Dardanus pedunculatus} with Sea Anemones {Calliactis polypus} attached, Izu Osezaki, Shizuoka, Japan

Constantinos Petrinos / Anemone Hermit crab {Dardanus pedunculatus} carrying anemone, Sulawesi

Juergen Freund / Anemone hermit crab with anemones on shell {Dardanus pedunculatus} Indo-pacific

Juergen Freund / Anemone hermit crab (Dardanus pedunculatus) with Sea anemones on shell. Indo-pacific