Conversation so far:
What did Alfred Russel Wallace accomplish?
discoverer of natural selection and his work on zoogeography.
What did you discover about vaccinations?
CANNOTANSWER.
What did Wallace do in 1890?
He received honorary doctorates and a number of professional honours.
Did Wallace receive any other doctorates?
honorary doctorates.

Question: What was Wallace's work on zoogeography?
Self-contained rewrite: What was Alfred Russel Wallace's work on zoogeography?