First, we'll get to retrace Darwin's expedition beyond the Galapagos to uncover the forgotten evidence that inspired his revolutionary work by using his own diary and field notes as a travel guide. We will see how fossils in Argentina, seashells in the Andes and the fish in the South Pacific helped him to cultivate his radical theory of evolution.
Check out a quick sneak peek into "Darwin's Secret Notebooks" which airs tonight at 9pm eastern:
Following "Secret Notebooks" is a special "Explorer:Monster Fish of the Congo" at 10pm eastern.

A 20 pound goliath tiger fish.
photo courtesy of Natinoal Geographic Channel
I had the opportunity to preview the specials and they're both fascinating. I highly recommend them to anyone, no matter what your beliefs on the matter. Very informative and most of all, fun adventures!
The Darwin 200th birthday celebration continues tonight starting at 9pm eastern on National Geographic Channel. Don't miss it!

whats up with the teeth