The team at the wildlife park handed out ice pops and frozen food to the park's animals on Friday in a bid to keep them cool in the heatwave.
Rhinos could be seen covered in mud - which acts as sunscreen - and a polar bear played in the water.
Scroll down for all the best photos.
1. Far too hot
Nobby the polar bear cools down as he plays in a lake at the Yorkshire Wildlife Park in Doncaster.
2. Ice pops
A ring-tailed lemur cools down by eating specially prepared animal friendly 'ice lollypops'
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