The best opinion now is, that there are multitudinous forms which are not sufficiently differentiated to be distinctively either plant or animal, while, as respects ordinary plants and animals, the difficulty of laying down a definition has become far greater than ever before.

Asa Gray

Animal Animals Become Before Best Definition Difficulty Down Either Ever Far Forms Greater Laying Now Opinion Ordinary Plant Plants Plants And Animals Respects Sufficiently Than Which While

Related Quotes

It was always understood that plants and animals, though completely contrasted in their higher representatives, approached each other very closely in their lower and simpler forms. But they were believed not to blend.

AlwaysAnimalsBelieved

Fiddling with the genetic identities of domesticated plants and animals ever since we had become human. We are the fiddlingest animal the world has ever seen.

— Sue Hubbell

AnimalAnimalsBecome

Many years ago it was taught that plants and animals were composed of different materials: plants, of a chemical substance of three elements,- carbon, hydrogen, and oxygen; animals of one of four elements, nitrogen being added to the other three.

AddedAnimalsBeing

They are the biology of the planet much more than plants and animals.

— Brian Lanoil

It's actually a very ancient antiviral pathway, because it is found in animals and plants. We're just making sure it's turned on.