A properly dressed male guppy, with its gaudy blue spots and brilliant splashes of orange, can't help but stand out. But for a fish that spends its life swimming among predators, it seems that good ...
A new study of wild guppies could unsettle a decades-old idea about the role of danger in the evolution of aging. Biologists in the 1950s predicted that in a treacherous habitat, creatures would ...
A new study demonstrates a female preference for rare males using an experiment in a wild population, rather than a laboratory setting. When it comes to choosing a mate, female guppies don't care ...
After death, male guppies can keep on siring offspring because females store sperm for so long. As a result, a living male in a stream in Trinidad can end up competing with long-gone fish from his ...
Drab male guppies have hit upon a mating strategy that could be easily adapted to the bar scene: Home in on the female besieged by ugly males. In lab-raised descendents of wild guppies females prefer ...
Social Structure and co-operative Interactions in a Wild Population of Guppies (Poecilia reticulata)
In contrast to the substantial number of theoretical papers that have examined the mechanisms by which cooperation may evolve, very few studies have investigated patterns of co-operation in natural ...
Genomic DNA was extracted from caudal finclips using the HotShot method (Truett et al, 2000). We screened four guppies of the Green strain, five guppies of Red strain, five guppies of the Blue strain, ...
When a guppy jumped out of a laboratory tank and nearly landed in her cup of tea, Daphne Soares couldn’t resist putting her current research on hold to investigate this strange leaping behavior. "The ...
A variety of animals have male-specific ornament traits and these ornaments are favored by female choice. Which male traits are preferred by females often varies among females. Genetic mechanisms that ...
Pet guppies often jump out of their tanks. One such accident inspired a new study which reveals how guppies are able to jump so far, and suggests why they do it. If you've owned a pet guppy, you know ...
Their brightly-coloured skin and beautiful fins have made them a favourite pet. But woe betide anyone who releases their guppy fish into the wild for these tropical creatures can upset the other ...
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