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Evolution, Life Sciences, Science Education, Human Evolution, and Stuff
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Category: Evolution
Diatoms are algae with hard parts. They make up a major part of the plankton found in fresh and salt water environments. Usually, diatoms exist as single celled free floating organisms, but they can also be colonies of several single cells. Their tiny little 'shells'...
Posted by Greg Laden at 4:26 PM • 7 Comments • 0 TrackBacks
Category: Cell Biology
But it might be worth thumbing through it just for fun ... You must be over 18 to read the rest of tis blog post. ------------------------- the fold -----------------------------...
Posted by Greg Laden at 7:39 PM • 12 Comments • 0 TrackBacks
Category: Cell Biology
The original video couldn't make it, so here's a substitute teacher video:...
Posted by Greg Laden at 9:18 PM • 4 Comments • 0 TrackBacks
Allen's Rule. One of those things you learn in graduate school along with Bergmann's Rule and Cope's Rule. It is all about body size. Cope's Rule ... which is a rule of thumb and not an absolute ... says that over time the species in...
Posted by Greg Laden at 6:21 PM • 9 Comments • 0 TrackBacks
Category: Cell Biology
hat tip IBY...
Posted by Greg Laden at 6:53 PM • 7 Comments • 0 TrackBacks
Category: Cell Biology
Sue Lynn Lau chose classical ballet and highly kinetic party dancing as the way to interpret her Ph.D. thesis, "The role of vitamin D in beta-cell function." As The Nutcracker Suite lilts in the background, Lau, a graduate student from the Garvan Institute of Medical...
Posted by Greg Laden at 12:00 PM • 2 Comments • 0 TrackBacks
Category: Cell Biology
A protist is a single celled eukaryotic organism, and they are usually pretty small. You can often see them, though! Before you put that sample of pond water under the microscope, take a close look: Many protists are at the boundary of visibility for humans....
Posted by Greg Laden at 6:27 PM • 11 Comments • 0 TrackBacks
The paper I'm about to discuss is a minefield of potential misconceptions that arise from the way we often use language do describe natural phenomena. This is a situation where it would be easier to start with a disclaimer ... a big giant obvious quotation...
Posted by Greg Laden at 8:20 PM • 3 Comments • 0 TrackBacks
Category: Cell Biology
Imagine that you are a bad guy running from the law, and the sheriff is about to catch up to you. If you want, you can be Butch Cassidy or the Sundance Kid or any other charismatic bad guy. Or maybe you're a wizard in...
Posted by Greg Laden at 9:05 PM • 3 Comments • 0 TrackBacks
A very good day of grunting worms. Credit: Ken Catania So-called Gene-Culture Co-Evolution can be very obvious and direct or it can be very subtle and complex. In almost all cases, the details defy the usual presumptions people make about the utility of culture,...
Posted by Greg Laden at 10:06 PM • 18 Comments • 0 TrackBacks
