Dogs, but Not Wolves, Lose Their Sensitivity Toward Novelty With Age

Conservation Genetics of Wolves and their Relationship with Dogs

József Topál , Dogs , Wolves , and Human Infants Differential Sensitivity

www.sciencemag.org (this information is current as of September 5, 2009 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/325/5945/1269 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/325/5945/1269/DC1 can be f...

Receptor Sensitivity: When T cells Lose Their Sense of Self

The T-cell antigen receptor binds to self-MHC molecules with low affinity. Recent reports disagree as to whether this interaction sensitizes or desensitizes the receptor. Here we discuss how these findings might be reconciled.

A Simple Reason for a Big Difference Wolves Do Not Look Back at Humans, but Dogs Do

The present investigations were undertaken to compare interspecific communicative abilities of dogs and wolves, which were socialized to humans at comparable levels. The first study demonstrated that socialized wolves were able to locate the place of hidden food indicated by the touching and, to some extent, pointing cues provided by the familiar human experimenter, but their performance remain...

How polymers lose memory with age.

Uniquely in the world of materials, polymers deformed at high temperature and subsequently quenched at low temperature, memorize the temperature at which they have been processed. Polymers can even memorize multiple temperatures. This temperature memory is reflected by a maximum of residual stress restored at the temperature of initial processing. It has been speculated that this capability cou...