Africa
laelaps | October 24, 2007I was planning on putting up one of my patented mega-posts this evening, but unfortunately I just don't have it in me at the moment. It's based on a presentation I made today involving scavenging and early hominids, and while I'm sure some of you will be able to make the right connections (especially if you're familiar with the work of a certain Rutgers alum) here's a video of a certain behavior exhibited by one of my most favorite big cats, the Leopard (Panthera pardus), that'll prominently figure in tomorrow's discussion;
laelaps | October 24, 2007
I have never heard sounds come out of a dog like the kind that I've heard out of a pack of excited African Wild Dogs (Lycaon pictus), the individual pictured above being a member of a large group kept at the WCS-run Bronx Zoo. While their species once ranged over 39 countries and their numbers were estimated as being as high as 500,000, today there are only 3,000-6,000 individuals left in a handful of countries, pressure from predator competition, disease, and killing by farmers/livestock owners make life very hard for these unique dogs. Indeed, they differ from all other known canids in…
scientificactivist | September 13, 2007There's been quite a bit of blogging lately about HIV denialism, so I thought I would take this opportunity to write a little bit about HIV denialism in South Africa--a subject that gets mentioned pretty often is rarely discussed in much detail. I spoke about this topic in my talk on Wednesday, though, because it serves as a nice lesson in the importance of not looking at certain problems too simplistically. The following--an excerpt--is a basic introduction to Thabo Mbeki's HIV denialism based on what I've learned traveling in South Africa and talking to a variety of people who study the…
zooillogix | June 25, 2007A Maclaud's horseshoe bat (being held in a glove) poses for the ladies...
For the first time, scientists photographed a Maclaud's horseshoe bat in the forests of Guinea in West Africa. These bats had not been seen in the wild in over 40 years. The featured photo was snapped by German biologist Natalie Webber, who found 16 horseshoe bats living in a remote cave complex. "Our rediscovery is good news insofar as the species is still there and as we have shown that the distribution range appears to be somewhat larger than previously known," said Jakob Fahr, a German ecologist who headed up the…
zooillogix | June 21, 2007Ba-Ba-Ba-Ba-Barbara-Anne......
According to a new study from Cornell University, African electric fish engage in a dueling performance of electric pulses when in courtship. Scientists had known that the fish emitted electric signals to explore their surroundings and communicate sex and social standing. This, however, was the first research comparing the electric emissions of breeding and non-breeding fish and sorting the fish's emissions based on their sex.
The fish use a battery-like organ in their tails to generate the weak charge. The researchers used custom software to separate and…