Conversation so far:
Where was David Attenborough born?
Isleworth, Middlesex, England
What did David Attenborough's father do for a living?
David Attenborough's father, Frederick, was principal of the University College, Leicester.
Did David Attenborough have siblings?
Richard Attenborough and John Attenborough
Did David Attenborough's parents foster children?
David Attenborough's parents also fostered two Jewish refugee girls from Europe.
What did David Attenborough like to do as a child?
David Attenborough spent his childhood collecting fossils, stones, and natural specimens.
Did David Attenborough get involved in anything specific as a child?
David Attenborough heard that the zoology department needed a large supply of newts, which he offered through his father to supply for 3d each.
What made David Attenborough get more interested in dinosaurs?
A few years later, one of David Attenborough's adoptive sisters gave him a piece of amber containing prehistoric creatures
What influenced David Attenborough as a child?
David Attenborough was influenced by Archibald Belaney's advocacy of conservation.
How did David Attenborough get interested in conservation?
In 1936, David Attenborough and his brother Richard attended a lecture by Grey Owl at De Montfort Hall, Leicester

Question: How did that lecture impact David?
Self-contained rewrite: How did that lecture impact David Attenborough?