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.
Interpretation
Species evolution is shaped by their roles within ecosystems and how they survive.
In this quote, Steven Pinker emphasizes that to grasp the process of evolution among various species, one must consider the specific roles or 'niches' they occupy within their ecosystems. Understanding how species adapt and thrive based on their ecological functions provides insight into the broader narrative of evolution, illustrating the interconnectedness of life forms and their environments.
In practice
In a biology class discussing evolution and ecosystems, this quote can help illustrate the concept of niches.
The foundation of individual rights is the assumption that people have wants and needs and are authorities on what those wants and needs are. If people's stated desires were just some kind of erasable inscription or reprogrammable brainwashing, any atrocity could be justified.
The linguistic clumsiness of tourists and students might be the price we pay for the linguistic genius we displayed as babies, just as the decrepitude of age in the price we pay for the vigor of youth.
If we are not to abandon values such as peace and equality, or our commitments to science and truth, then we must pry these values away from claims about our psychological makeup that are vulnerable to being proven false.
We adults protect ourselves with laws, police, workplace regulations and social norms and there is no conceivable reason why children should be left more vulnerable, other that laziness or callousness in considering what life is like from their point of view.
The idea that children are passive repositories to be shaped by their parents has been massively overstated. A child's peer group is a far greater determinant of its development and achievements than parental aspiration.
Reason is non-negotiable. Try to argue against it, or to exclude it from some realm of knowledge, and you've already lost the argument, because you're using reason to make your case. ... We don't "believe" in reason.
Without theory, practice is but routine born of habit. Theory alone can bring forth and develop the spirit of invention. ... [Do not] share the opinion of those narrow minds who disdain everything in science which has not an immediate application. ... A theoretical discovery has but the merit of its existence: it awakens hope, and that is all. But let it be cultivated, let it grow, and you will see what it will become.
So how can we test the idea that the transition from nonlife to life is simple enough to happen repeatedly? The most obvious and straightforward way is to search for a second form of life on Earth. No planet is more Earth-like than Earth itself, so if the path to life is easy, then life should have started up many times over right here.
Anybody who has been seriously engaged in scientific work of any kind realizes that over the entrance to the gates of the temple of science are written the words: 'Ye must have faith.'
The art of doing mathematics consists in finding that special case which contains all the germs of generality.
Information: the negative reciprocal value of probability.
The most important discoveries will provide answers to questions that we do not yet know how to ask and will concern objects we have not yet imagined.
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