Sexual harassment is a burden that females of many species face, and some may go to extreme lengths to avoid it. In a new paper from the June issue of the American Naturalist, Darren Croft (University ...

Male guppies that glow with more orange aren’t just fashion-forward — they’re also significantly more sexually active. A UBC study reveals that brighter coloration is linked to virility and is ...

You know how it is: You're minding your own business when up swims a male guppy determined to copulate with you. It's not your fertile time of the month, you're not giving off attractive chemical ...

Guppies choose their friends wisely, new research suggests. When under threat of sexual harassment from aggressive male fish, female Trinidadian guppies pair with "attractive" females to avoid ...

Best girlfriends might never let a man come between them — unless they're Trinidadian guppies. Among these fish, the presence of a harassing male can disrupt female social networks, causing ...

Researchers found that male Trinidadian guppies observe a form of nepotism when it comes to pursuing the opposite sex. These tiny tropical fish often help their brothers in the mating process by ...

Guppies have been a separate species for 500,000 years, and during that time their color has changed drastically. But one thing has stayed the same: an orange patch on males. This is quite possibly ...

We've seen in our simulations that the more brightly colored a male guppy is, the more likely he will be seen -- and eaten -- by a predator. In a simulation or in the wild, where predators are ...

Consumer-driven nutrient recycling, the release of chemicals as byproducts and excesses of consumer physiology, can alter ecosystems by changing the availability of limiting nutrients at the base of ...

Male guppies have an extraordinary diversity of colors. They found that the more colorful males were up to two times more sexually active, performing for females for longer periods of time and at a ...