...looked upon as the modified descendants of bygone organic forms. As AR Wallace has expressed it : " Every species has come into existence coincident both in space and time with a pre-existing and closely allied species." The breaking up of biological regions into distinct, separate areas may...

...Deszendenztheorie bezeichnet werden kann. WALLACE formuliert das von ihm festgestellte Gesetz folgendermaßen: „Every species has come into existence coincident...time with a pre-existing closely allied species". Wie dachte er sich nun die „Verbindung" zwischen den Arten? Er spricht mehrmals ausdrücklich von...

...significance that closely allied forms tend to cluster in the same general region. As Wallace remarks, " Every species has come into existence coincident both in space and time with a preexisting and closely allied species." This is, of course, what we should expect if species were derived the...

...significance that closely allied forms tend to cluster in the same general region. As Wallace remarks, " Every species has come into existence coincident both in space and time with a preexisting and closely allied species." This is, of course, what we should expect if species were derived the...

...renewal of the forms of life in successive geological epochs, he has deduced the following law : — Every species has come into existence .coincident...and time with a pre-existing closely allied species. The question is one of great importance, and deserving the careful investigation of every geologist...

...word variety for species) from that lately advanced in an ingenious paper by Mr. Wallace, in which he concludes, that "every species has come into existence...time with a pre-existing closely allied species.'" CD refers to Wallace '8554 Malthus 1826. 5 Hooker 1859 was the first scientific work to discuss CD's...

...Wallace argued that the facts of geographical and geological distribution of species suggested the 'law' that "Every species has come into existence coincident...time with a pre-existing closely allied species". Very probably he was already convinced that some kind of trans-specific evolution was causally responsible...

...comprehensive law to elucidate all the facts of change in the organic world. Wallace stated it simply: "Every species has come into existence coincident...and time with a preexisting closely allied species." The law was designed to explain the geographical distribution of animal and vegetable life over the...

...the species by affinity is also geographical." And this observation leads him to the law: Evenspecies has come into existence coincident both in space and time with a pre-existing closely allied species. By stating either "in the same locality or in closely adjoining localities," Wallace obscured the strictly...

...distribution of animals and plants for many years. In his paper, he concluded that every species had come into existence coincident both in space and time with a preexisting closely allied species. CD scored Blyth's reference to the paper in the margin of the letter, but there is no indication when...