You meet someone new; you like them; you send them to your Facebook page. But how accurate is this representation of you? We all want to look our best, which is why we are drawn to the ability to fudge things a bit online. How does this projection of who we are distort us into who we want to be? Facebook allows us to hide our flaws that are all too visible in real life. We can embellish or correct what (...) we said earlier, edit out what we don’t like about ourselves, and only show photos where our chin is down and the lighting is blown out just enough to hide the bump on our nose. Our prospective employers can even turn to Facebook to assess our desirability. So might the constructed aesthetic of Facebook affect our approach to ethics – to interacting with other people? Does the way we design ourselves on Facebook directly impact the other people in our lives? Is each of us really just a rough draft that needs immediate editing? What about Facebook makes it possible to achieve genuine beauty? (shrink)

The jaw movements of speech are most probably derived from jaw movements associated with vocalisation. Cyclicity does not argue strongly for derivation from a cyclic pattern, because it arises readily in any system with feedback control. The appearance of regular repetition as a part of ritualisation of a display may have been important.

Presents a review of all the main aspects of work on learning and plasticity in behaviour and neural mechanisms in the chick, together with related topics such as the development of behaviour and lateralization of function.

The use of lateralised cues by predators and fellows may not strongly affect lateralisation. Conservatism of development is a possible source of consistency across vertebrates. Individuals with partial reversal, affecting only one ability, or with varying degree of control of response by one hemisphere do exist. Their incidence may depend on varying selection of behavioural phenotypes such as risk taking.