# Special Instincts explained — The Origin of Species

> Chapter companion for The Origin of Species by Charles Darwin.

## What happens

Darwin explores how instincts in nature are modified by natural selection, focusing on three remarkable cases: the cuckoo's egg-laying habit, the slave-making instinct of ants, and the cell-building instinct of hive-bees.

## Themes in this chapter

### Natural Selection and the Struggle for Existence

Instincts are modified by natural selection, as shown in cuckoo, ant, and bee behaviors.

### Adaptation and the Utilitarian Doctrine

Each instinct serves a functional purpose for the species' survival and reproduction.

## Character check-ins

### Charles Darwin

Author and narrator, analyzing instincts through natural selection.

### Pierre Huber

Naturalist who studied the slave-making instinct of ants.

## Key lines

> We shall, perhaps, best understand how instincts in a state of nature have become modified by selection by considering a few cases.

We can best grasp how natural selection modifies wild instincts by examining specific examples.

_Darwin introduces the method of studying instinct through case studies._

> I will select only three, namely, the instinct which leads the cuckoo to lay her eggs in other birds’ nests; the slave-making instinct of certain ants; and the cell-making power of the hive-bee

I will focus on just three: the cuckoo's egg-laying in other birds' nests, the slave-making behavior of some ants, and the honeycomb-building ability of bees.

_Darwin outlines the three key instinct examples to be analyzed._

## Links

- HTML: https://www.betterreads.online/discover/the_origin_of_species_se/chapters/special-instincts
- Book: https://www.betterreads.online/discover/the_origin_of_species_se
- All chapters: https://www.betterreads.online/discover/the_origin_of_species_se/chapters