London, UK. 26th Aug, 2015. Zookeeper Karl Ashworth weighs a Rockhopper Penguin as the Zoological Society of London (ZSL) performs its annual animal weigh-in at London Zoo. Credit: Guy Corbishley/Alamy Live News

• Contributor: Guy Corbishley / Alamy Stock Photo
• Image ID: F13BD1
• File size: 17.1 MB (704.4 KB Compressed download)
• Releases: Model - no | Property - no
• Dimensions: 1987 x 3000 px | 16.8 x 25.4 cm | 6.6 x 10 inches | 300dpi
• Date taken: 26 August 2015
• Location: London

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This image could have imperfections as it’s either historical or reportage.

Zookeeper Karl Ashworth weighs a Rockhopper Penguin as the Zoological Society of London (ZSL) performs its annual animal weigh-in at London Zoo Every year the Zoological Society of London (ZSL) performs an animal weigh in at London Zoo. The height and mass of every animal in the zoo, of which there are over 16, 000, is recorded and submitted to the Zoological Information Management System. This is combined with animal measurement data collected from over 800 zoos and aquariums in almost 80 countries, from which zoologists can compare information on thousands of endangered species.

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