Sex- and age-specific rates of killing unrelated persons of one's own sex were computed for Canada (1974-1983), England/Wales (1977-1986), Chicago (1965-1981), and Detroit (1972) from census information and data archives of all homicides known to police. Patterns in relation to sex and age were virtually identical among the four samples, although the rates varied enormously (from 3.7 per millio...

The nest is a key element of avian reproductive fitness. It provides the developmental environment for the embryo and nestling thereby affecting their quality and survival. Nests are often constructed by the male and nest quality, elaboration, and ornamentation vary among males in a species. Therefore, male nest-building behaviour is likely under sexual selection and females may use male nest-b...

This study reports the presence of a high molecular weight protein (Bengalin) from the Indian black scorpion (Heterometrus bengalensis) venom having antiosteoporosis activity in experimental osteoporosis developed in female albino Wister rats. Bengalin was purified through DEAE-cellulose ion exchange chromatography and high performance liquid chromatography. The molecular weight of the Bengalin...

Evidence is accumulating that in the green algae the evolution of female and male gametes differing in size--anisogamy--involves genes linked to the mating-type locus, as was predicted theoretically.

Objective: To evaluate the effects of spearmint leaves extract on body weight, liver weight and RTWI pups in Swiss albino mice. Study Design: Experimental study Place Duration Study: Anatomy Department, Shaikh Zayed PGMI, Lahore from 1st March 2014 to 30th June 2014. Methodology: Seven male 21 female mice were used. After conception divided into control (A), low dose (B) high (C) experimental g...