The big freeze, which has led to many of the UK’s ponds freezing over, may benefit animals living beneath the surface. Received wisdom says that pond owners should break a hole in the ice to allow oxygen to reach the water. But new research by conservation charity Pond Conservation has shown the opposite is true.
Fish, and other pond life, have evolved over millions of years to live in ponds that regularly freeze over. It should come as no surprise that they cope just fine when it happens. Perhaps more surprising is that it may actually be beneficial.