Volunteers were asked to learn personality attributes that described the aliens, all of whom shared
certain physical features such as their color, their shape, or the way they moved.
The documentary looks at other problems that have resulted from mating dogs who are close relatives, all for the purposes of
accentuating certain physical features deemed desirable by the dog show crowd — boxers suffering from epilepsy, pugs with breathing problems and bulldogs who are unable to mate or give birth unassisted because their heads are so big.
In July, three scientists proposed that
certain physical features shared by domestic animals, described as domestication syndrome, might all result from mild defects in the function of cells known as neural crest cells (SN: 8/23/14, p. 7).
The experts, who were told only that the women received the information in a «reproductive health setting» without relating it to abortion, found that the inaccuracies are concentrated
around certain physical features, such as extremities and internal organs, and fetal viability in a manner that overstated fetal development, Daniels said.
RSPCA dog welfare expert Lisa Richards told The Huffington Post UK: «Many dogs have been bred to
emphasise certain physical features, some of which have become so extreme that they can cause pain and suffering, make dogs prone to particular disorders, or even prevent them from behaving normally and from enjoying the activities we know dogs love.
You can create subtle age, appearance and communication filters, meaning that you address a certain age group, you require
a certain physical feature and some other matching element.
What happened in the Victorian era is that people started breeding dogs to accentuate
certain physical features.