Category: Tech / Sci / August 21, 2013 3:25 PM EDT
It was time for London Zoo's keepers to find out which animals have been eating too much or not getting enough exercise during the annual weigh in on Wednesday (August 21).
It was easy to get some of the creatures onto the scales. An African bull frog sat patiently in the bowl as keepers recorded his weight at 400g. The tiny bright green waxy monkey frog sat in a small spoon to be weighed, he was ten times lighter at just 40g.
The annual job also sees keepers measuring the height of their animals. No small task when it came to the tiger enclosure.
Morsels of raw meat were dangled in front of Jae Jae, the Sumatran tiger to get him to stand up and be counted. He measured 6 foot 6 inches on the giant measuring tape in his enclosure.
The information goes into a global data base to allow zoos around the world to monitor animals health.
Keeper Angela Ryan said it is also useful to compare weights and measures of zoo animals against those in the wild.
"Because obviously animals in captivity can sometimes put on a little bit more weight being around humans. Sometimes you like to give animals, you know, the food that they want, so we have to be very careful and very strict with their diets to make sure they are fit and healthy and so by having a weigh in we can compare them to their wild friends," said Ryan.
Some of the animals were a little shy to get onto the scales. Tammy the tree anteater had to be coaxed onto the scales with the temptation of a cup full of food.
One of the zoo's heavier residents, Noemi the camel weighed 625 kg.
Video Credit: Reuters