‘Giraffes, Africa’s Gentle Giants’ is one of the most interesting and instructive TV nature programmes. It is about the incredible efforts of one of the (1) ... (SCIENCE) and his international team to protect endangered African giraffes by finding them a new home and transporting them there  — a truly daring plan. Giraffe numbers have dropped by almost forty per cent because they are (2) ... (THREAT) by wild fires and illegal hunters. The latest research shows that population numbers have been increasing for all species of giraffes over the past few years. The overall number is still small, but conservationists are (3) ... (OPTIMISM) for the species. I believe everyone who loves nature and wants to protect it would enjoy this programme, whatever their age. They would (4) ... (DEFINITE) learn a lot from it, as I did.