Images Dated 5th September 2003

Broadclub cuttlefish

Male broadclub cuttlefish (Sepia latimanus) displaying threat colouration to another male (not seen). The bands of black and white are used to intimidate other males during the breeding season. Cuttlefish can rapidly change the colour of their skin by dilating or contracting pigment cells called chromatophores. This cuttlefish preys largely on crustaceans, which it catches with a quick strike with its two tentacles (not seen). These are usually kept hidden amongst its eight arms, as here. This cuttlefish is found in the tropical Indo-Pacific region. It may reach a length of around 45 centimetres. Photographed off Indonesia

© GEORGETTE DOUWMA/SCIENCE PHOTO LIBRARY

Broadclub cuttlefish mating

Broadclub cuttlefish (Sepia latimanus) mating. After mating, the female lays numerous eggs in individual egg cases, attached to plants, rocks or corals. Cuttlefish can rapidly change the colour of their skin by dilating or contracting pigment cells called chromatophores. This cuttlefish preys largely on crustaceans, which it catches with a quick strike with its two tentacles (not seen). These are usually kept hidden amongst its eight arms. This cuttlefish is found in the tropical Indo-Pacific region. It may reach a length of around 45 centimetres. Photographed off Indonesia

© GEORGETTE DOUWMA/SCIENCE PHOTO LIBRARY

Pyramid at Giza during the day, Egypt

Giza Pyramid. A daytime view of one of the pyramids at Giza. This pyramid is that of the pharaoh Chephren, and was built in about 2520 BC. The pyramids were built as monumental tombs designed to cover the burial chamber of the pharaoh. There are various pyramid sites throughout Egypt. Although the ones at Giza are the largest, the internal decoration of passages and chambers is poor compared to later tombs. There has been speculation that the pyramids also had an astronomical connection. One theory claims that the pyramids at Giza and other sites were part of a massive construction project intended to mimic the constellation of Orion

© DAMIEN LOVEGROVE/SCIENCE PHOTO LIBRARY