Community Quote by Ernst Mayr

A species consists of a group of populations which replace each other geographically or ecologically and of which the neighboring ones integrate or hybridise…

— Ernst Mayr

A new species develops if a population which has become geographically isolated from its parental species acquires during this period of isolation characters which…

— Ernst Mayr

I had found again and again that the most aberrant population of a species - often having reached species rank, and occasionally classified even…

— Ernst Mayr

The thing that defines a species is that all members have the same addressing system for their DNA.

— Richard Dawkins

Biologically the species is the accumulation of the experiments of all its successful individuals since the beginning.

— H. G. Wells

Each species may have had its origin in a single pair, or individual, where an individual was sufficient, and species may have been created…

— Charles Lyell

The way to understand how different species evolved is to think about the niches that they fill in an ecosystem - basically, how they…

— Steven Pinker

Mr. Darwin refers to the multitude of the individual of every species, which, from one cause or another, perish either before, or soon after…

— Richard Owen

Speciesism: A failure, in attitude or practice, to accord any nonhuman being equal consideration and respect

— Joan Dunayer

Each individual is a species unto him/herself.

— Rudolf Steiner

“Nature is the birthright of everyone on Earth. The millions of species we have allowed to survive are our phylogenetic kin. Their long-term history…

— Edward O. Wilson

You know when you work with animals you have to do so very carefully, species by species.

— Niki Caro