...each species are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence, it follows that any being,...chance of surviving and thus be naturally selected. From the strong principle of inheritance, any selected variety will tend to propagate its new and modified...

...make the fit fit. It works no change on any being. Darwin wrote, in the introduction to The Origin that "any being, if it vary however slightly in any...better chance of surviving, and thus be naturally selected."106 But no being does vary genetically, even slightly, in its lifetime. No being adapts itself...

...existence, it follows that any being, if it vary . . . slightly in any manner profitable to itself, will have a better chance of surviving, and thus be naturally selected. 5 A single example: Some mosquitoes give birth to thousands of offspring. Most die when sprayed with...

...each species are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence, it follows that any being,...chance of surviving, and thus be naturally selected. From the strong principle of inheritance, any selected variety will tend to propagate its new and modified...

...each species are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence, it follows that any being,...chance of surviving, and thus be naturally selected. From the strong principle of inheritance, any selected variety will tend to propagate its new and modified...

...each species are born than can possibly survive: and as. consequently. there is a frequently occurring Struggle for Existence. it follows that any being....chance of surviving. and thus be naturally selected" (1859. p. 5). Darwin made it plain. in this initial statement and in all his subsequent writings. that...

...to the substantially increasing burden of those disorders? Charles Darwin (1859) deduced that in the "struggle for existence, it follows that any being,...varying conditions of life, will have a better chance of survival." Accordingly, survival is not random, and competition for survival will result in "survival...

...recurring struggle for existence. it follows that any heing. if it vary however slightly in any mansier profitable to itself. under the complex and sometimes varying conditions of life. will have a hetter chance of surviving. and thus he naturally selected. From the strong principle of inheritance....

...each species are born than can possibly survive; and as, consequently, there is a frequently occurring Struggle for Existence, it follows that any being,...chance of surviving, and thus be naturally selected, (p. 5) In other words, Darwin saw that organisms compete for resources (mostly food — his "Struggle...

...individuals are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence, it follows that any being,...chance of surviving, and thus be naturally selected. (C. Darwin, 1859, page 3) A primary source is the original work in which a specific piece of information...