Humans make rational choices—though perhaps not all the time. But does the ability for rational decision-making extend to other members of the animal kingdom? If so, how far are they from the human lineage?
Okayama University researchers confirm the role of mate-guarding in males for blocking the female's visual familiarity with rival males to improve mating success in a medaka fish model.
Biologists studying a small, colorful fish in the Mediterranean Sea have discovered a new way in which a female can choose the best father for her offspring.
Who was the first woman to have her period in space? What is it like changing sanitary products while being weightless? And why doesn't menstrual flow just float up into the body when gravity isn't around?
University of Otago researchers studying chinook salmon have provided the first evidence that "cryptic female choice" (CFC) enhances fertilisation success and embryo survival.
What if Darwin was wrong?
A team of international scientists has tracked the love lives of koalas, uncovering some curious behaviours and finding that male koalas make their distinct bellows to avoid confrontation with competitors.
Female mice are attracted more strongly to the odour of healthy males than unhealthy males. This had already been shown in an earlier study by researchers from the Konrad Lorenz Institute of Ethology at the Vetmeduni Vienna. ...
It's official (in the horned beetle world at least), females prefer courtship over competitiveness – and it doesn't matter about the size of your mandibles either.
Males will mate with anything. Well, that is the general view, one that exists because of a simple biological underpinning: females are reproductively limited by costly gestation, while males are only limited by their number ...