Species go extinct because there are historical contraints…

In our lifetime, we're going to see fifty percent of the world's species go extinct. We're already seeing this radical rise in the world's…

— Anohni

Every species becomes extinct; at some point, we will go extinct. The question is, as Homo sapiens, are we going to be able to…

— Louise Leakey

A language, like a species, when extinct, never... reappears.

— Charles Darwin

For millions of years, on average, one species became extinct every century… We are now heaving more than a thousand different species of animals…

— Douglas Adams

...An average of seventy-four species become extinct every day, which was one good reason but not the only one to hold someone's hand...

— Nicole Krauss

If in your lifetime you watch a species go extinct, or plummet almost to the point of extinction, that is a sign that something…

— Elizabeth Kolbert

“An average of seventy-four species become extinct every day, which was one good reason but not the only one to hold someone’s hand, and…

— Nicole Krauss

I think when you work on fossils, and you realize that a species is there, and it's abundant for quite a long period of…

— Louise Leakey

Maybe you are a poet and a dreamer, but don't you realize that those two species are extinct now?

— Anonymous

“By the time Lyall set foot on the shores of Stephens Island, almost a third of New Zealand’s unique species were already extinct due…

— Peter P. Marra

There's money to be made by driving a species extinct.

— Paul Watson

'Extinction' issue. Save the species for whom??? Humans' convenience, of course! Individuals of the species are snatched from their homes/family/habitat/held in captivity/forced to mate…

— Adela Popescu

Herman slipped his hand into mine, and I thought, An average of seventy-four species become extinct every day, which was one good reason but…

— Nicole Krauss

I think we must ask ourselves if this is really what we want to do to God's creation, to drive it to extinction? Because…

— Stuart L. Pimm

“A species that becomes extinct because of ethics, disappears. A species that survives because of function can rediscover ethics.”

— Vanya M.G