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.

What ARK players use the Boaratos for, and how to get the most out of it in ARK: Survival Ascended & Evolved.