Quote

The existence of common features in different forms of life indicates some relationship between the different organisms, and according to the concept of evolution, these relations stem from the circumstance that the higher organisms, in the course of millions of years, have gradually evolved from simpler ones.

— Hans Adolf Krebs

Sentiment: POSITIVE

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✓Similar Perspectives

The concept of evolution postulates that living organisms have common roots, and in turn, the existence of common features is powerful support for the concept of evolution.

— Hans Adolf Krebs

In the course of evolution, it constantly happens that, independently of each other, two different forms of life take similar, parallel paths in adapting themselves to the same external circumstances.

— Konrad Lorenz

First, Darwinian theory tells us how a certain amount of diversity in life forms can develop once we have various types of complex living organisms already in existence.

— Phillip E. Johnson

They are unique in the simplicity, the diversity, the related harmony of the forms of life that they enclose.

— Marjory Stoneman Douglas

Evolution is the fundamental idea in all of life science - in all of biology.

— Bill Nye

We have spoken of beings so low in the scale that the individuals throughout their whole existence are not sufficiently specialized to be distinctively plant or animal: yet these are definite life in simpler shape.

— Asa Gray

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

— Steven Pinker

That the variability of an organism to a certain extent is a constant and certain condition of life we admit, otherwise there would be no distinguishable individuals of a species.

— Richard Owen

✗Opposing Perspectives

There's a theory that says that life is based on a competition and the struggle and the fight for survival, and it's interesting because when you look at the fractal character of evolution, it's totally different. It's based on cooperation among the elements in the geometry and not competition.

— Bruce Lipton

Whenever we find, in two forms of life that are unrelated to each other, a similarity of form or of behaviour patterns which relates to more than a few minor details, we assume it to be caused by parallel adaptation to the same life-preserving function.

— Konrad Lorenz