It's always been a dream of mine, of exploring the living world, of classifying all the species and finding out what makes up the biosphere.
Ants make up two-thirds of the biomass of all the insects. There are millions of species of organisms and we know almost nothing about them.
On the ordinary view of each species having been independently created, we gain no scientific explanation.
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.
The relation of the individual person to the species he belongs to is the most intimate of all relations.
Aquatic invasive species are destroying the environment, damaging fisheries, and costing American taxpayers billions of dollars annually.
A dog is a vehicle, you know; a dog is a window to Mother Nature, and that's the closest species we have.
How individuals of the same species surpass each other in these sensations and in other bodily faculties is universally known, but there is a limit to them, and their power cannot extend to every distance or to every degree.
It seems obvious that if a species has the brainpower for speech, along with the sort of appendages that can manipulate a pair of pliers, it will eventually blunder into science, technology, and radio.
Susan Orlean: What I came to understand is that change is not a choice. Not for a species of plant, and not for me.
Producer's Surplus is a convenient name for the genus of which the rent of land is the leading species.
All human beings have a right to life. Our unborn children are members of the human race. They're human beings, so they have a right to life.
Human nature doesn't include all human beings. There are human beings who are indifferent to politics, religion, virtually anything.
One cannot fail to notice the inconsistency of those rejecting human rights: their rejection takes place in the public square created by human rights. It is difficult to reject human rights without using them.
Might one not say that in the chance combination of nature's production, since only those endowed with certain relations of suitability could survive, it is no cause for wonder that this suitability is found in all species that exist today? Chance, o...
The starting point of 's theory of evolution is precisely the existence of those differences between individual members of a race or species which morphologists for the most part rightly neglect. The first condition necessary, in order that any proce...
The human heart is difficult to gauge.
The science of the mind can only have for its proper goal the understanding of human nature by every human being, and through its use, brings peace to every human soul.
The average human being spends three years of life going to the toilet, though the average human being with no physical toilet to go to probably does his or her best to spend less. It is a human behavior that is as revealing as any other about human ...
The smallest thing outlives the human being.
What's unnatural is homophobia. Homo sapiens is the only species in all of nature that responds with hate to homosexuality.
