surya

surya

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There are more than 100 species of sepia cuttlefish, a greater number of species than in any other cephalopod genus. Like all cuttlefish they contain cuttlebones, which are not bones but lightweight structures that help regulate buoyancy. This internal shell is filled with tiny compartments into which the cuttlefish can pump air or fluid to make itself lighter or heavier. The name sepia comes from the brown pigment released when the cuttlefish is alarmed.

There are more than 100 species of sepia cuttlefish, a greater number of species than in any other cephalopod genus. Like all cuttlefish they contain cuttlebones, which are not bones but lightweight structures that help regulate buoyancy. This internal shell is filled with tiny compartments into which the cuttlefish can pump air or fluid to make itself lighter or heavier. The name sepia comes from the brown pigment released when the cuttlefish is alarmed.

Pharaoh cuttlefish (Sepia pharaonis) at Richelieu Rock, Surin Islands, Thailand.

thelovelyseas: “ Pharaoh cuttlefish (Sepia pharaonis) at Richelieu Rock, Surin Islands, Thailand. The two males were fighting each other while the female was laying eggs by Steve De Neef ”