Since yesterday's photo of Syndyoceras was so popular, I thought I would put up a photo of another protoceratid artiodactyl, this time Protoceras celer. Often found in deposits that were in proximity to streams, this animal showed some sexual dimorphism in its ornamentation, males (like the one pictured above) being more ornate than females.
- Log in to post comments
More like this
Sexual dimorphism in organisms is nothing new; it has long been known that in certain species one sex is often larger, flashier, or somehow markedly different than the other. In some species like the Indian Peafowl (Pavo cristatus), the mail carries a brightly colored train that is used to…
The original title for this article was going to be 'Sorry Heteralocha, but you ain't that special'. I ended up deciding against that, however, as I realised that few readers would know what the hell I was on about, nor indeed what Heteralocha is. Heteralocha (Heteralocha acutirostris to be…
Dean Snow was one of my two advisors in undergraduate school. I have fond memories of all six months of college. But that's another story. Anyway, several years ago, Dean got wind of the research showing that humans exhibit sexual dimorphism in the ratios of the middle digits of the hand. It is…
Giraffine giraffes (that is, the giraffid clade that includes Giraffa and its closest relatives) are famous for being long necked, with the usual explanation for the neck being that it evolved to enable these animals to avoid competing with other browsers.
But for this assumption to be…
Sorry, but I can´t see it, the photo is too dark.
Sorry, Sordes. I actually tried to brighten it up a bit but it came out very grainy, although I'll give it another try later. I know a lot of people might have trouble with my photos if the monitors are darker or older, but I'll try to be mindful of that.
Might this be better? If so, you're welcome to it. I messed with the Levels a bit.
http://i20.photobucket.com/albums/b231/maureen492/modifiedprotoceratid.jpg