And if Plan A doesn't work, they also have a backup plan involving bees (which we'll call "Plan Two"). Elephants, it turns out, are terrified of bees, which sting their sensitive eyes and trunk. In fact, research has shown that elephants even have a word that means "Run like hell, the bees are coming!" Normally, this would not be terribly helpful, because it's kind of hard to train bees to attack things on command (it would qualify as an awesome superpower if you could). But they will defend their hive to the death. So, hey, why not stick a bunch of beehives on the fence?

It worked like a charm -- scientists monitored one stretch of bee fence for two years, and when it came to elephant attacks, the score was 44-1 in favor of the bees (44 elephants turned away, one got through, probably in a rage from being shot in the face with chili powder). And if maintaining a fence full of beehives sounds like a pain in the ass, it also works if you just play a recording of bee sounds over a loudspeaker.

OU/Lucy King
Eight people died to get this photograph.

There are about 2 million or so ravenous serpents out there now (that's about 12,000 snakes per square mile, in case you were wondering). Of the original 12 indigenous bird species, only two are left, and of those there are about 200 individuals alive ... at least until the snakes find them. And now the absence of birds is causing other problems. For instance, in recent years, Guam has seen a huge increase in spider populations. Without birds to keep their numbers in check, the spider population has grown up to 40 times normal. So millions of snakes and millions of spiders on a tiny strip of tropical paradise. Sounds lovely, right? But then you have the larger question of what millions of venomous snakes do when they run out of food. The answer is they start invading homes, crawling into beds and causing regular power outages. Note that they can grow up to 11 feet long, can cross gaps 65 percent of their body length and are great climbers.

Bruce Jayne, Sciencemag.org
Yeah. They can stand up now.

Hilariously, at this point much of the anti-snake efforts are devoted to trying to keep the damned things on Guam so they don't take over the rest of the world. They actually run spotlights along the fences at airports to make sure snakes don't sneak in and then stow away on a plane to end up some place politicians actually care about, like Hawaii. We're pretty sure they're this close to just fencing off the whole island and declaring it a snake prison, like a reptilian Escape from New York. Clearly, it was time to get creative.

The snakes, as it turns out, have a weakness: A mere 80 milligrams of acetaminophen, the active ingredient in Tylenol, is 100 percent deadly to a brown tree snake. For comparison, a normal human adult dosage is about 1,000 milligrams. The acetaminophen interferes with the snake's blood, disrupting its ability to carry oxygen.

Photos.com
Get the truck -- we're goin' snake huntin', bitches!"

Unfortunately, holding the snakes down and forcing them to ingest pediatric fever medication is even harder than it sounds. So the USDA and the EPA have been injecting dead rats with Children's Tylenol and air dropping them all across the island. The snakes eat the rats, the snakes die, everybody wins (except the snakes). And yes, we said "air dropping." Since the snakes mostly live in trees, they get the poison to the snakes by parachuting boxes of moldering rat corpses into the canopy, which has to be extremely confusing to any hiking tourists.

If you think the lions would see through this ruse pretty quickly, you're wrong -- they've had two straight years of lion-free nights. A tween with no access to any sort of technical information or research took some spare parts and designed a system that halted all lion attacks -- something whole governments have been failing to do since forever.

Afrigadget.com
Come on, at least tell us it shoots out lasers or something.

Oh, and did we mention they're solar-powered? The family has a car battery that they charge up with a solar panel; they use it to run their TV and, now, to hold lions at bay. Richard's little device of four or five lamps, some wires and a few batteries costs less than 10 bucks. His inventive genius has saved the cattle of his family and neighbors, possibly some family member or neighbor lives, as well as the lives of a number of lions who would have likely been shot in their raids.

Afrigadget.com
"I intimidated an entire species of the fiercest predator on the planet. What did you do today?"

Did we mention that cane toads secrete a deadly toxin that causes cardiac arrest in just about every life form native to Australia? Snakes, snails, kangaroos, even a 9-foot crocodile can be killed by a single toad. Oh, and they have no natural predators. And a single female can lay 100,000 eggs a year.

University of Sydney
Also, licking a cane toad is the equivalent of taking LSD. Which explains the croc's natural attraction to tie dye.

This is where ants come in. Somehow, someone decided that ants would be the perfect anti-frog predator and set about finding just the right bunch. While Australia is host to a number of ferocious ant species, the "meat ant" in particular tends to live around water, just like toads. But how can ants deal with the poison they would chomp into if they were attacking cane toads? Cane toad toxins, after all, attack the heart.

Fortunately, ants are heartless. And while you'd think that the toads could just hop away from an ant swarm, they actually use a strategy called crypsis when attacked -- basically, the toads stay very still and hope their poison kills the attacker. So as soon as the ants start gnawing, the toad just lies there ... and gets eaten.

So how do researchers plan to lure ants to where the frogs are? The answer is even more insane than the idea of using ants to wipe out toads: cat food. Toss cat food around the toads, ants come for the cat food, ants eat the toads because why bother with the cat food when there are delicious toads around? No word on how many stray cats are eaten alive by voracious ants in the process.

Photos.com
"See, this is why I never go outside. Or to Australia."