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Category: Anthropology
Is the Natural World a valid source of guidance for our behavior, morals, ethics, and other more mundane areas of thought such as how to build an airplane and what to eat for breakfast?1 When it comes to airplanes, you'd better be a servant to...
Posted by Greg Laden at 12:50 PM • 55 Comments • 0 TrackBacks
Category: Anthropology
I've noticed that Scienceblogs.com has been running ads for hot Russian mail order brides. These ads are rather funny ...
Posted by Greg Laden at 12:01 AM • 11 Comments • 0 TrackBacks
Category: Evolutionary Biology
As you know if you read my blog, Trivers Willard is an important theoretical construct which has been tested numerous times. TW works in some species, not in others, and overall, that should be predictable (accroding to TW). It turns out that finches control the...
Posted by Greg Laden at 6:01 PM • 0 Comments • 0 TrackBacks
Category: primates
The Trivers Willard Hypothesis predicts that under certain conditions, individuals will bias their investment in offspring differently depending on the sex of the offspring. It is believed that this can be as extreme as infanticide or as subtle as providing different amounts of breast milk....
Posted by Greg Laden at 8:38 PM • 6 Comments • 0 TrackBacks
Human societies tend to be at least a little polygynous. This finding, recently reported in PLoS genetics, does not surprise us but is nonetheless important. This important in two ways: 1) This study uncovers numerical details of human genetic variation that are necessary to understand...
Posted by Greg Laden at 3:25 PM • 23 Comments • 0 TrackBacks
Sometimes boys are worth more, sometimes girls are worth more. In an evolutionary sense. Or, more correctly, the value of a certain sex ... as an offspring ... can be measured in fitness terms. Fisher noted this and hypothesized this was the explanation for the...
Posted by Greg Laden at 9:50 PM • 11 Comments • 0 TrackBacks
Why is there no Birth Control Pill for men? This latest "Ask a ScienceBlogger" question will certainly engender a wide range of responses from the Scienceblogs.com team. Answers may address physiology, endocrinology, pharmacology, economics, and other areas of scientific thinking and practice. The answer...
Posted by Greg Laden at 10:00 AM • 8 Comments • 0 TrackBacks
Category: Trivers-Willard
The Trivers Willard Hypothesis predicts that under certain conditions, individuals will bias their investment in offspring differently depending on the sex of the offspring. It is believed that this can be as extreme as infanticide or as subtle as providing different amounts of breast milk....
Posted by Greg Laden at 3:59 PM • 0 Comments • 0 TrackBacks
Category: Trivers-Willard
Most of you won't know who Whitey Bulger is. He is actually on the FBI's ten most wanted list. He may have been spotted in Italy last Spring, and the FBI is just now asking for assistance from anyone who knows where he might be....
Posted by Greg Laden at 2:59 PM • 2 Comments • 0 TrackBacks
