Monogamy Pays

Breaking up is hard to do — and can be detrimental to one’s reproductive fitness, according to a new University of Pennsylvania study. Read More...

Sex at Sea – How to Avoid the Beach Master

The southern elephant seal, Mirounga leonina, is a textbook example of an extremely polygynous mammal. As the breeding season begins dominant males fight for control of dozens to hundreds of females on his section of beach real estate (Figure 1). Females within Read More...

To Lek, or Not to Lek – The Sex Life of Antechinuses

Among mammals, lek mating is rare. A lek is a traditional display site where females congregate to select a mate from among the many males competing for her attention. While leks are relatively common in Read More...

Topi males deceive females

When it comes to securing a mate, males can be very deceptive. In certain cases males use false signals, such as alarm calls, to disrupt courtship or breeding attempts by rival males. However, deceptive Read More...