Gentle giants!

The touching bond between elephants and their protectors...

- IAN MACEWAN, SEAN MARLAND

PLANET EARTH III

Sunday, 6.15pm, BBC1 Factual

They say an elephant never forgets, and that's borne out by an encounter in this week's Planet Earth III episode about desert and grassland dwellers, from thirsty baboons to the rare, fruit-eating maned wolf.

The grasses of Zakouma National Park in Chad are home to one of the most spectacular wildlife gatherings on Earth, Camouflag lies including buffaloes, elephants, giraffes, leopards and lions.