There were a few raised eyebrows on the streets of central London today after a 3 tonne polar bear went on the rampage.
It was actually a puppet - operated by fifteen puppeteers.
But thousands came to see it nonetheless.
It was part of an international day of action against drilling in the Arctic.
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The images, taken by the Zoo’s expert veterinary team reveal the inner workings of a variety of different species.
Six men were arrested and a seventh interviewed under caution over the video, which sparked outrage when it was posted online in November.