In 1948, Angus Bateman published a paper on fruit flies that tested Charles Darwin's ideas
of sexual selection. Based on this one fruit fly study, Bateman concluded that because males …

The marsupial genus Antechinus is a group of small carnivorous marsupials from the order
Dasyuromorphia (Family Dasyuridae) and is found in eastern Australia. The life history of all …

Bateman's principles, their corollaries and predictions constitute a paradigm for the study of
sexual selection theory, evolution of mating systems, parental investment theory, and sexual …

Protocols for the successful manipulation and preservation of semen in a given species
depend upon a fundamental knowledge of how spermatozoa respond to the …

Nonfertilizing sperm with special morphologies have long been known to exist in
invertebrates. Until recently, abnormal sperm in mammals were considered errors in …

Multiple paternity within broods or litters occurs in many species across a variety of social
mating systems. Here we present data on paternity patterns in the agile antechinus …

Freshly weaned 30-day-old male Wistar rats were fed a vitamin D-deficient diet adequate in
calcium and phosphorus for 3 months. On the 120th day of age three different doses of …

Antechinus agilis is a small sexually size dimorphic marsupial with a brief annual mating
period of 2–3 weeks. All males die after this period, and females give birth to up to 10 young …

To study the effect of vitamin D deficiency on testicular function, 30-day-old male rats were
put on a vitamin-D-deficient diet. At 120 days of age, the testicular function of these animals …

Successful preservation of semen is an important part of the development and
implementation of artificial breeding programmes for marsupials (Johnston, 1999). When …