Andy Rouse / Bengal tiger (Panthera tigris) male, sub-adult aged three years, face portrait. Ranthambhore National Park, India.

Jan Hamrsky / Diving beetle (Colymbetes fuscus) close up head portrait. Europe, June. Controlled conditions.

Edwin Giesbers,Edwin Giesbers / Sumatran tiger (Panthera tigris sumatrae) close-up head portrait, captive

Edwin Giesbers / Sumatran tiger (Panthera tigris sumatrae) close-up head portrait, captive

Edwin Giesbers / Siberian tiger (Panthera tigris altaica) detail of patterns surrounding the eye, captive.

ZSSD / Malayan Tiger (Panthera tigris jacksoni), native to Malaysia

Thomas Mangelsen / Bengal Tiger (Panthera tigris tigris) close up of eyes, India

Toby Sinclair / Close up of Tiger face {Panthera tigris}, India

Sandesh Kadur / Bengal tiger (Panthera tigris) female and cubs swimming in pond. Ranthambore National Park, India.

Andy Rouse / Bengal tiger (Panthera tigris) walking past Banyan Ficus sp tree. Ranthambhore National Park, India.

Andy Rouse / Bengal tiger (Panthera tigris) cub standing, licking lips. Ranthambhore National Park, India.

Andy Rouse / Bengal tiger (Panthera tigris) female and cub, portrait. Ranthambhore National Park, India.