Essay in 2007

Carl Linnaeus's use of erotic language to describe plants ultimately helped him to recruit a global network of specimen collectors.

Recent observations of vast numbers of galaxies may pose problems for the galaxy classification scheme proposed by Edwin Hubble.

A memory-based immune system may have evolved in vertebrates because of the need to recognize and manage complex communities of beneficial microbes.

A memory that works by piecing together bits of the past may be better suited to simulating future events than one that is a store of perfect records.