My friend Ian Bullock, who has died of melanoma aged 73, was an all-round naturalist, traveller, communicator and artist. He worked in the wildlife conservation sector and latterly became a popular naturalist guide with small ecotourism cruise ships.
Ian was born in Cambridge. His father, Clive, was a salesman for the Pye electronics company, and his mother, Jo (nee Simmonds), was a nurse. After leaving Cambridge grammar in 1969 he taught biology in a Kenyan school, through Voluntary Service Overseas.