"In addition to having grown to an immense size, this angelfish has evolved to possess a venom most deadly. Owing to the many unwitting souls who met their end with a flaky morsel in their mouths, it has come to be named for the Death Seraph of legend."

Says fish has developed a venom, describes individuals dying from eating the flesh.

Venom is injected. Poison is ingested.

Proposed fix: replace "venom" in the description with "poison."