The boaratos Fire breath cannot dealing dmg to Kroaratos and hydraskos so use other dino for these bosses
Boaratos
The Boaratos is a massive fiery boar coming to ARK: Survival Ascended on the Astraeos map. Nearly twice the size of a Daeodon, it carves through trees with its tusks and can ignite its fur and tusks to unleash explosive fire attacks.

Player-written tips for taming, using, and fighting the Boaratos in ARK: Survival Ascended & Evolved.