Biology Quote by Nick Sagan

If few worlds have microbial life, it dramatically reduces the chances that more complex organisms exist.

— Debra Fischer

There is life outside of human beings on planet Earth.

— Da'Vine Joy Randolph

An argument often given for why Earth couldn't host another form of life is that once the life we know became established, it would…

— Paul Davies

We know that within the solar system is very unlikely there will be anything more advanced than microbial life, but if we think outside…

— Paul Davies

The incredible diversity oflife on this planet, most of which is microbial, can only beunderstood in an evolutionary framework

— Carl Woese

“Nothing is more important to human beings than an ecologically functioning, life sustaining biosphere on the earth. It is the only habitable place we…

— Joseph Guth

I do see a lot of the hard end of ecology, and my feeling is that we live on a super-exciting planet but a…

— Bear Grylls

We're constantly re-evaluating the potential for life. We're finding it where we didn't think it could exist, such as volcanic vents and other extreme…

— Joe Rogan

An organism exists for no other reason than that it is able to... The wonderful, almost transcendent thing about life on earth is that…

— Richard Mabey

Earth as an ecosystem stands out in the all of the universe. There's no place that we know about that can support life as…

— Sylvia Earle

There is a deep interconnectedness of all life on earth, from the tiniest organisms, to the largest ecosystems, and absolutely between each person.

— Anonymous

The diversity of life on Earth, generally, is astonishing. But despite those large numbers, it's also important to recognize that every species, one way…

— Sylvia Earle