Mamu are spirit creatures or monsters that are invisible to the eye, but can be seen by ngangkari's (traditional healers.) Mamu may appear in a persons dreams during sleep, or sometimes are found walking the desert landscape. These spirit creatures can be friendly, but are often thought of as scary characters that can be quite cheeky. Tiger Yaltangki invented his own personal mamu. They oftenresemble animals, people, and science fiction characters. Influenced by television programmes such as The Mighty Boosh and Doctor Who, Tigers spirit figures were boldly presented.

Tiger Yaltangki was a Yankunytjatjara artist from Indulkana Community on the APY Lands in the remote north-west of South Australia. Yaltangki was largely non-verbal, with his artistic practice a means of self-expression. A compulsive drawer and mark-maker, Tiger worked every day at Iwantja Arts.

His work is held in the collections of AGSA, AGNSW, Araluen Arts Centre, Artbank, NPG, QAGOMA