I have heard of an evolutionist who, if given the choice of saving a child, or a rare tiger, was unclear which he would save

What was his name? Can you provide the context for this alleged remark and a direct quote? As the question he was allegedly asked has nothing to do with evolution, can you explain to us why you thought it necessary to say that he was an "evolutionist"? Is he a qualified evolutionary biologist or is he just someone who you disagree with?