Having only been away from the Okavango Delta in Botswana for six months since filming the first series, the BBC ’s wildlife filmmakers might have worried there would not be enough new things happening amongst the big cats there. But if anything, the dramatic lives of Africa’s lions, cheetahs and leopards had more shocks and surprises than the first time around. Following them across six vital months from June to November we see the cats – and humans – battle punishing seasonal change, from