sexual reproduction

Alpha male or small and sneaky? Losing a leg as a juvenile may make all the difference

New finding suggests how and why temperatures determine the sex of turtles

WHOI study links personality and divorce rates for the first time in animals

Two novel hypotheses have been proposed that address the “two-fold cost of sex”

Female zebra finches are choosy but flexible when finding a mate, allowing them to avoid the cost of being too selective

Gene in brain tissue regulates sexual behavior in males in mouse study

In recent research, scientists examined how sperm respond to follicular fluid, which surrounds eggs and contains sperm chemoattractants

Animals that seek mates and fight rivals that resemble parents could eventually set stage for new species

Climate change affects ecosystems not only through warming, but also by delivering more extreme weather events

New discovery could transform outlook for men with fertility problems