The flametongue kavu is a kavu variant that is able to spit fire at targets. It has a sulphuric odor.
The flametongue kavu generates the fire from two rock-like growths in the back of its throat. By clicking them together, it creates an ignition spark. Coupled with naturally flammable gas in its breath create its fiery blast. The rock-like growths can wear down, requiring months to regrow.
"For dim-witted, thick-skulled genetic mutants, they have pretty good aim." -Sisay, captain of the Weatherlight