Hamza's Hidden Wild Isles

Hamza heads to the south Devon coast to spot Atlantic bluefin tuna

In autumn, Hamza heads to the south Devon coast to spot Atlantic bluefin tuna, and pays a night-time visit to London's Highgate Cemetery in search of urban foxes. He also explores a cave system in Northern Ireland, where experts have discovered a hidden species of cave spiders and a fungus that turns the underground arachnids into zombies