News tagged with guppies

Invasion of the monogamous fish

(Phys.org) —Researchers at the University of St Andrews have made a shock discovery; that restricting a normally multiply mating fish to monogamous mating does not impair their colonisation ability. Their ...

Jun 30, 2014
5 / 5 (1) 0

Males produce faster sperm for sisters

(Phys.org) —Mating with relatives, or inbreeding, can be costly to both sexes, and in many species males and females avoid mating with siblings.  However, the latest research adds a twist to this story ...

May 07, 2014
4.2 / 5 (6) 1

Fish prone to melanoma get DNA decoded

Scientists at Washington University School of Medicine in St. Louis and elsewhere have decoded the genome of the platyfish, a cousin of the guppy and a popular choice for home aquariums. Among scientists, ...

Apr 15, 2013
5 / 5 (1) 1 | with audio podcast

Big brains are pricey, guppy study shows

Bigger brains can make animals, well, brainier, but that boost in brain size and ability comes at a price. That's according to new evidence reported on January 3rd in Current Biology, in which researchers artifi ...

Jan 03, 2013
not rated yet 4 | with audio podcast

Bisexual fish boost mating chances

In an unusual mating strategy, hard-up males of a tiny, promiscuous fish species engage in homosexual acts in a bid to entice females to copulate with them, a study said Wednesday.

Dec 12, 2012
5 / 5 (3) 1

Single wild female

(PhysOrg.com) -- The release of a single female guppy into the wild can generate entire new populations, even with no males present, according to new research.

Sep 22, 2011
4 / 5 (2) 0 | with audio podcast