# Mr. B. D. Walsh — The Origin of Species character guide

> Mr. B. D. Walsh in The Origin of Species by Charles Darwin.

**Role:** minor

**Also known as:** Mr. B. D. Walsh, Mr. Walsh, himself

**First appearance:** 0056-vii-miscellaneous-objections-to-the-theory-of-natural-selection

## Who they are

An entomologist who studied insect galls and variation.

## In the story

### [Distinct Species Present Analogous Variations, So That a Variety of One Species Often Assumes a Character Proper to an Allied Species, or Reverts to Some of the Characters of an Early Progenitor](https://www.betterreads.dev/discover/the_origin_of_species_se/chapters/distinct-species-present-analogous-variations-so-that-a-variety-of-one-species-often-assumes-a-character-proper-to-an-allied-species-or-reverts-to-some-of-the-characters-of-an-early-progenitor)

Discussed analogous variations in insects under natural conditions, grouping them under his law of equable variability.

### [IX: Hybridism](https://www.betterreads.dev/discover/the_origin_of_species_se/chapters/ix-hybridism)

Mentioned in the context of observations on hybrid sterility (implied by reference to Mr. Hewitt's observations on pheasants and fowls).

## Links

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