'It is strange to see the British struggling with the beaver': why is rewilding so controversial?

In barely a decade, nature has reconquered a West Sussex estate - but conservationists, farmers and even broadcasters are divided over the R word

Just down the road from Gatwick, the neatly hedged English countryside gives way to an exuberant, utterly alien-looking landscape. Arable fields are obliterated by dense thickets of sallow. Eight metre-wide blackthorn hedges spill into flowery meadows. Wild pigs and red deer run rampant through ragwort, thistles and other weeds. The air is alive with birdsong rarely heard in Britain today - spectacular bursts of nightingale and the purring of turtle doves.

In barely a decade, rewilded nature has conquered Knepp Castle in West Sussex. Rewilding appears to be conquering conservation too. As Brexit and the savaging of agricultural subsidies loom, farming may also be engulfed by this new wild. But as rewilding blossoms, so do controversies. Scientists recently warned that wild boar illegally released into Scotland could carry the CC398 strain of the MRSA superbug that is resistant to antibiotics.