Rearing up with its head four feet above the ground, Africa's Black Mamba strikes with deadly precision, delivering venom that is packed with three different kinds of toxins and is ten times more deadly than needed to kill an adult human. Without treatment the mortality rate is 100%...in the tiny country of Swaziland a team of herpetologists has an entirely different "take" on these creatures and hopes their six-week study will change public perception of what they feel is the world's most misunderstood snake...NATURE...7pm
Every 48 years, the inhabitants of the remote Indian state of Mizoram suffer a horrendous ordeal known locally as mautam. An indigenous species of bamboo, blanketing 30 percent of Mizoram's 8,100 square miles, blooms once every half-century, spurring an explosion in the rat population which feeds off the bamboo's fruit...the rats run amok & panic ensues...NOVA investigates at 8pm
And at 9, National Geographic how dangerous stress can be...really...
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