Dogs Behave Jealously… in 1871

This chart appeared in “Mental Evolution in Animals” “Mental Evolution in Man”, both published in the 1880s; Romanes depicts the emotional and cognitive development starting with unicellular. On the left, at level 21, Romanes lists “Jealousy. Anger and Play.” On the right side, at level 28 we see “Anthropoid apes and dogs” at the same…

5 Tall Tales from 1 Small Mind

I am an occasional visitor to the Natural Dog Training (is there such a  thing as Supernatural Dog Training?) blog authored by snake-oil salesman and new-age mystic Kevin Behan. Reading the blog is amusing and infuriating. I find it painful to see him lie to readers and distort the latest science story to support the sales his energy…

Angelina Jolie, Evolution and Pleiotropy

Angelina Jolie recently revealed she underwent a double mastectomy; a prophylactic measure to combat the risk of breast cancer associated with BRCA1 gene she carries. Like many other ‘disease’ genes BRCA1 and BRCA2 show evidence of positive selection, suggesting a fitness advantage. To understand how BRCA provides an evolutionary advantage we have to look at the other…