British rivers are to be stocked with specially modified trout that are easier for anglers to hook.
The freshwater fish have been engineered in a way that makes them infertile, to avoid them interbreeding with native wild species.
But a side effect of the engineering is a low sex drive in the fish, which it is believed is making them easier to catch.
When breeding, wild trout migrate and will not eat, meaning they are not attracted to anglers' lures. The modified fish have no such tendency.
Modified trout 'are easier to catch' - Telegraph
Modified trout 'are easier to catch'
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