Because - as usual, the human race is destroying the snakes natural habitat - in favour of expanding into 'unused' land.
A fer-de-lance is a species of highly venomous snake. See related link for a photograph. Specifically a comparatively large Central and South American pit viper.
It is a snake
Fer-de-Lance
Bushmaster !
The fer-de-lance snake is found in Central and South America. The Emerald Tree Boa is found in South America.
A Fer-de-lance is a venomous snake found in central and South America, and Asia.
Black Mamba
Fer-de-Lance - comics - was created in 1988.
Maybe this is what you were looking for. http://en.wikipedia.org/wiki/Bothrops_atrox common lancehead, fer-de-lance, barba amarilla.
NO
It is a highly venomous viper from South America with a head shaped like a lance.
No, the fer-de-lance, a viper with potent venom, would probably make a horrible family pet -- unless you had some serious issues with your family.