Posted in September 2011

Patience is a virtue for invading wasp females

Patience is a virtue for invading wasp females

In social insects, like honey bees, the queen is usually the only one making babies. All other females are subordinate and sterile.The reason natural selection doesn’t weed out this behavior is thought to be because all the subordinate females are nearly genetically identical to the queen. In other words, as long as the queen is … Continue reading

Inbred females have more fun

Inbred females have more fun

Female red flour beetles (Tribolium castaneum) shouldn’t want to mate more than once. They get enough sperm from a single male to fertilize all their eggs, and mating with multiple males can actually harm them. So why do many red flour beetle females mate multiple times? New research published this week in Science provides one … Continue reading

Gametes to spare–two stories for you!

Gametes to spare–two stories for you!

I haven’t been doing that much interwebbing lately, but I thought it would be best not to skip the weekly links again. However, I hesitate to call this a link “roundup” seeing as I only have 2 stories for today: sperm-shooting squid and egg-stacking beetles.

What mountain climbing does to your sperm

What mountain climbing does to your sperm

Thinking about taking a romantic excursion up in the mountains? If you’re trying to get pregnant, this may not be the best strategy. A study published in the Journal of Assisted Reproduction and Genetics has linked being at high altitudes with low sperm DNA quality.  Why did they choose focus on high altitudes? Previous research had shown that … Continue reading