Looking back now on the whole sexual scene we can see that our species has remained much more loyal to its basic biological urges than we might at first imagine. Its primate sexual system with carnivore modifications has survived all the fantastic technological advances remarkably well.

There are one hundred and ninety-three living species of monkeys and apes. One hundred and ninety-two of them are covered with hair. The exception is a naked ape self-named Homo sapiens. The zoologist now has to start making comparisons. Where else is nudity at a premium.

It must be stressed that there is nothing insulting about looking at people as animals. We are animals, after all. Homo sapiens is a species of primate, a biological phenomenon dominated by biological rules, like any other species. Human nature is no more than one particular kind of animal nature. Agreed, the human species is an extraordinary animal; but all other species are also extraordinary animals, each in their own way, and the scientific man-watcher can bring many fresh insights to the study of human affairs if he can retain this basic attitude of evolutionary humility.

We read off the many signals that our companions' clothes transmit to us in every social encounter. In this way, clothing is as much a part of human body language as gestures, facial expressions and postures.Even those people who insist that they despise attention to clothing, and dress as casually as possible, are making quite specific comments on their social roles and their attitudes towards the culture in which they live.

In a social environment that is ever crowded and impersonal, it is becoming increasingly important to reconsider the value of close personal relationships before we are driven to ask the forlorn question, 'Whatever happened to love?'

We are to put it mildly, in a mess, and there is a strong chance that we shall have exterminated ourselves by the end of the century. Our only consolation will be that as a species, we have had an exciting term of office.

Aquatic animals suffer from the disadvantage that they cannot scream when in pain, so we find it hard to gauge the degree of their agony. If fish could scream, angling purely for sport would be outlawed without delay.

...In little more than a single century from 1820 to 19450, no less than fifty-nine million human animals were killed in inter-group clashes of one sort or another.... We describe these killings as men behaving "like animals," but if we could find a wild animal that showed signs of acting this way, it would be more precise to describe it as behaving like men.

I think like the species I am studying, whatever it is. If I am watching a lizard, I become the lizard. Gazing ath the water at a pike, I become the pike.

The idea that it is funny to see wild animals coerced into acting like clumsy humans, or thrilling to see powerful beasts reduced to cringing cowards by a whip-cracking trainer, is primitive and medieval. It stems from the old idea that we are superior to other species and have the right to hold dominion over them.

The female covers her breasts, and then proceeds to redefine their shape with a brassiere. This sexual signaling device may be padded or inflatable, so that it not only reinstates the concealed shape, but also enlarges it, imitating in this way the breast swelling that occurs during sexual arousal.

Clearly, then, the city is not a concrete jungle, it is a human zoo.

Biologically speaking, if something bites you it's more likely to be female.

No matter how old we become, we can still call them 'Holy Mother' and 'Father' and put a child-like trust in them.

This unusual and highly successful species spends a great deal of time examining his higher motives and an equal amount of time ignoring his fundamental ones.

The city is not a concrete jungle, it is a human zoo.

Life is like a very short visit to a toyshop between birth and death.

I viewed my fellow man not as a fallen angel, but as a risen ape.