News tagged with reproductive behavior

Scientists identify nature's insect repellents

In the battle between insect predators and their prey, chemical signals called kairomones serve as an early-warning system. Pervasively emitted by the predators, the compounds are detected by their prey, and can even trigger ...

Jul 16, 2010 4.6 / 5 (8) 1 | with audio podcast

Lustful beetles desire water, not sex

(PhysOrg.com) -- Female seed beetles are known for their promiscuity, a surprising fact given that the males of the species have dangerously sharp spikes on their sex organs. Now a U of T Mississauga team ...

Mar 05, 2009 4.2 / 5 (5) 0

Unattractive guppies have better sperm

(PhysOrg.com) -- Scientists studying tropical guppies have discovered that the less colorful and attractive males have better quality sperm, while the attractive fish invest in their appearance at the expense ...

Jun 07, 2010 3.7 / 5 (3) 0 | with audio podcast report

Gene knockout makes female mice masculine

The mammalian fucose mutarotase enzyme is known to be involved in incorporating the sugar fucose into protein. Female mice that lack the fucose mutarotase (FucM) gene refuse to let males mount them, and will attempt copulation ...

Jul 08, 2010 5 / 5 (1) 0