Extreme bacteria (not another reality show).

What is an obligate anaerobe? What does extremophile mean? Click here to read more about a unique kingdom of bacteria.  The picture at the right was taken at the Midway Geyser Basin in Yellowstone National Park. The yellow coloring is caused by a particular type of archaebacteria that is known to survive at extremely high temperatures like those produced from a geyser.

Lions and tigers and LIGERS. Oh my!

Wait a minute. Ligers? Grolar Bears? Wholphins? How would Carlos Linnaeus classify these organisms? Do they contradict what he believed about classification? Do you know of any other hybrid crosses? Tell me what you think! Want to see more? (Thanks Radhika!)