Vernal pools are a critical protein source in the food chain. A healthy pool is the home for frogs and salamanders; their young grow and migrate outwards from the pool where they are consumed by larger animals. The pools also provide a source of fresh water for insects, mammals and birds. This picture was taken on my farm, we take many steps to ensure that this pool remains healthy - keep the dog out of the water, avoid mowing or disturbing anywhere near it, remove the odd bit of blow-in garbage (looking at you, mylar balloons) etc.
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