2020 will be remembered as a mast year (amongst other things). But why?

Did you have acorns raining down on your head this year as we did? Mast years are when trees across the country produce a bumper crop of fruit or nuts.

Mast years are thought to be advantageous for the trees as they swamp animals which eat the seeds so that a proportion will germinate to form a new generation of trees. 2013 was the last big mast year. NatureSpot reports on why they occur.

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