Hunstman spiders in New Zealand: Movement of introduced insects driven by a warming climate, expert says / Scientists resolve 'identity crisis' for Australia's deadliest spider / Giant spiders that can grow to size of human hand thriving in the UK / Giant spiders the size of rats making a comeback in UK / Venomous flying spiders with 4-inch legs spread across East Coast / Giant flying spiders spreading up the East Coast / Venomous flying spiders to spread along East Coast, scientists say / Creepy-looking 'bright yellow spider' with unique ability spotted in UK