I was looking for this video about Venezuela's Pebble Toad for some weeks but it was not available yet. Now we have it. Sir David Attenborough narrates here about this little amphibian's strategy to survive predators such as the largest tarantula on Earth, the Goliath Bird-eating spider.
You can also read some in the BBC article and in Wikipedia (it is a threatened species).
The BBC rocks as well!