If you take the area of the Welsh Mountain Zoo that actually has animal exhibits in the area there wouldn't be that much difference between the 2 in size.
Nice bit of news has been released by the zoo on their Facebook page.... If you go to the Hamerton facebook page you can see a video of the cubs and their mother.
The latest electronic newsletter confirms the rearing of Tayra in 2012 , along with Sloth and Binturong . Two large wind turbines have recently been erected . These will meet the Park's electricity needs as well as providing a surplus to be sold into the Grid .