Strange and unusual creatures

A look at the strange creatures that roam our planet.

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Siboglinids (left), which lack a mouth and digestive system, live inside tubes (right) in methane or sulfide-rich environments.
Siboglinids (left), which lack a mouth and digestive system, live inside tubes (right) in methane or sulfide-rich environments.

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Strange and unusual creatures

A look at the strange creatures that roam our planet.

Gallery View:Strange and unusual creatures
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Siboglinids (left), which lack a mouth and digestive system, live inside tubes (right) in methane or sulfide-rich environments.
Siboglinids (left), which lack a mouth and digestive system, live inside tubes (right) in methane or sulfide-rich environments.

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Strange and unusual creatures

A look at the strange creatures that roam our planet.

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Siboglinids (left), which lack a mouth and digestive system, live inside tubes (right) in methane or sulfide-rich environments.Siboglinids (left), which lack a mouth and digestive system, live inside tubes (right) in methane or sulfide-rich environments.

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Siboglinids (left), which lack a mouth and digestive system, live inside tubes (right) in methane or sulfide-rich environments.
Siboglinids (left), which lack a mouth and digestive system, live inside tubes (right) in methane or sulfide-rich environments.