A javelina is not the Spanish word for javelin, as in the long sharp stick thrown in track-and-field meets.
A javelina (pronounced "hav-a-len-a") is a wild pig, as in peccary or skunk pig. It's not the same as a domestic pig, though feral domestic pigs apparently can also become as wild and vicious as javelinas.
Some environmentalists are now suggesting that you can help save the environment by shooting wild pigs.
Madame L thinks that makes as much sense as shooting English sparrows and starlings.