Nothing says holiday romance quite like kissing under the mistletoe, but wait until you see the bird that helps it grow. The mistletoebird eats the parasitic flower's berry and quickly poops the undamaged seed onto high tree branches.

Giraffes have a humongous appetite to match their large stature. Dining on 75 pounds of leaves per day, these giant hedge pruners have an extreme way of bending and shaping trees on the African Savanna.

Sheep in New Zealand have a foe in an unexpected and sometimes lethal winged predator. The kea is the world's only alpine parrot—with an appetite for flesh.

Seabirds better watch out if they're unfortunate enough to live within range of this aerial pirate. The frigatebird has a cruel strategy for plundering fish right from the beaks of other birds.

Fights break out between dung beetles over stinky balls of treasure. To the victor goes the smelliest of spoils!

The female anglerfish is known for its luminescent, modified fin which it uses to lure prey. However, that's not the oddest appendage on her body. When a male anglerfish is smitten, he gets a little too attached.

Even the champion of a food eating contest would be no match for the average hummingbird. Eating 60 meals a day, the hummingbird never gains a pound and always has room for dessert.

Arachnophobes fear spiders, but what does the biggest spider of them all have to fear? The paralytic sting of a tarantula hawk.

In the art of love, the male bowerbird knows that one key to wooing a mate is creating an impressive bachelor pad. This avian Casanova works tirelessly for months on end to set the mood for any lady visitors.

This is one bird who will not be winning trophies for "World's Best Mom" any time soon. The cuckoo bird's parenting techniques are downright cuckoo.

Want to have a lush backyard with minimal effort? Get some gardening tips from this tiny species of kangaroo, and a forest will grow in no time!

Any creature that threatens a horned lizard will start to 'see red' and taste it, too. Find out the unusual way this lizard defends itself from predators.

Attracting the attention of females with their dancing and natural beatboxing skills, male sage grouses know how to throw one funky party!

There's no doubt that Tasmanian devils live up to their name—even from birth. Once they emerge from mom's pouch, they never stop scrapping whether it's against a sibling, a foe or dear old mom!

Make a ring-tailed lemur angry and you're in for one foul smelling surprise! Males tell each other who's boss by flinging potent stink bombs of body odor.

Fights break out between dung beetles over stinky balls of treasure. To the victor goes the smelliest of spoils!

Nothing says holiday romance quite like kissing under the mistletoe, but wait until you see the bird that helps it grow. The mistletoebird eats the parasitic flower's berry and quickly poops the undamaged seed onto high tree branches.

Giraffes have a humongous appetite to match their large stature. Dining on 75 pounds of leaves per day, these giant hedge pruners have an extreme way of bending and shaping trees on the African Savanna.

The title says it all. This bulldog will watch hours of TV everyday. Let's hope it's tuned to Animal Planet!

Check out some of the baddest animals on the planet -- Animal Planet, that is!

While home from college with his beloved dog, Evan woke up to find Arthur the boxer tearing up his parent's living room. During the clean up process, Evan decided to have a little fun with his pet pooch at the expense of his parent's vacuum cleaner.

Buddy will steal anything he can in order to get a treat. His owners have even taken to bribing him to be good. This is one bandit who is holding his owners hostage.

Because of behavior problems, this family had no choice but to crate their little dog when they weren't at home. But they were shocked when a hidden camera captured a puppy jailbreak!

This pet bird has a fondness for singing, barking, clucking ... and biting!

This family learns how fun owning three billy goats can be, when they find them dancing on higher ground!

This cat doesn't let a little head banging get in his way of a game of fetch.

Parrot raps, beat boxes, and curses people out.

This little guy doesn't let his size get in the way of his intimidation! Watch Bad Dog Saturday at 11 PM E/P!

Despite seeming quite afraid of her human's printer, this cat likes to keep in step with it! Watch Bad Dog Saturday at 11 PM E/P!

Boo is a bit rough and mischievous, but he loves his family. You just have to be smarter than him.

When cat treats get mysteriously devoured, a curious owner takes to a video interrogation of his two dogs. The video evidence reveals a huge guilty grin!