Any combination of dog and wolf, ie., a hybrid of the two. (It's a popular consensus that three parts dog to one part wolf genetically makes a "safe" wolfdog hybrid.)

The safeguarding of Earth and other worlds from biological cross-contamination (i.e. billionaires with too much time on their hands).

Also known as “planetary protection.” Planetary protection / quarantine “reflects both the unknown nature of the space environment and the desire of the scientific community to preserve the pristine nature of celestial bodies until they can be studied in detail.”

There are two types of interplanetary contamination. Forward contamination is the transfer of viable organisms from Earth to another celestial body. Back contamination is the transfer of extraterrestrial organisms, if such exist, back to the Earth's biosphere.

Essentially a sexual predator. A Wolfdog is a sneaky, inappropriate, and overly-aggressive homosexual man who specializes in preying on inebriated and confused victims at the tail end of a night of partying. Wolfdogs can usually be found in dimly lit, low traffic areas of concerts, nightclubs, and especially, festivals... typically near the restroom/port-a-potty area. The common Wolfdog is known to be on the prowl in the wee hours of the morning. Diversion with seemingly innocent conversation is a common tactic of the Wolfdog, but stay vigilant dear friends, for this is merely misdirection. The final destination is always sexual in nature. Consent means nothing to the Wolfdog. Not quite a rapist, but he has considered it. Can also be used as a verb.

A overly massive gargantuan of a dog that seemingly resembles a wolf, but has the traits of that a human when protecting its territory. It investigates and sizes the oppositon and attacks under the stand your ground law in florida. the trick is to not provoke these mammoth dogs, because they will eat you alive.