THE author took this structure as an illustration in reply to those who are not yet satisfied that structures exist which are useless to the animal body containing them. Referring first to the case of ...

The forces of evolution are mighty indeed, having sculpted flora fauna as diverse as magnolia trees and algae, dust mites and cheetahs, through natural selection, also known as survival of the fittest ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Metaphorically, building bridges equates to creating new opportunities, connections, and paths. The first bridges likely formed naturally with logs falling across rivers and natural depressions, ...

I MUST claim the opportunity of reply to the article which appeared in your number of October 16 (vol. viii p. 509), entitled “On the Appendix Vermiformis and the Evolution Hypothesis,” which the ...