Survival International has campaigned for the rights of reindeer herding tribes for decades.
In this seasonal gallery, Survival reveals extraordinary facts about the reindeer.

'We were made the same as the sand'

'The ocean is our universe'

'We learn with the great spirits'

Nine facts for 9 August: UN Indigenous Day

'We are here for our children'

Guardians of the world's rainforests

'Our souls touch': Sámi reindeer herders

The Nenets of Siberia

'Today we are crying with happiness'

Voices from the Lower Omo Valley

Fishermen of Amazonia

The Ashaninka

Nitassinan: walking in the footsteps of Innu ancestors

We are inside it, and it is inside us

'We didn't know what a cold was then'

Tribal Olympians
Tribes from the Air

The Hadza

Tribal Heroines

'Mother'

Celebrities supporting the Awá