Wow… that’s the best you’ve got? That bugs have six legs? That the Bible isn’t a science book?
You could’ve saved the trouble looking those up and just asked whether ‘inerrancy’ means that the Bible is a science text. It isn’t. The Catholic Church doesn’t claim that it is. Heck, back in the 4th century, even St Augustine pointed out this fact!
What does ‘inerrancy’ mean, then, when the Church states the Bible is inerrant? The Vatican II document
Dei Verbum is quoted in the catechism at paragraph 107: “The inspired books teach the truth. ‘Since therefore all that the inspired authors or sacred writers affirm should be regarded as affirmed by the Holy Spirit, we must acknowledge that the books of Scripture firmly, faithfully, and without error teach that truth which God, for the sake of our salvation, wished to see confided to the Sacred Scriptures.’”
The claim here, then, is that among that “which God, for the sake of our salvation, wished to see [in] … Scripture”, the answers to the questions “how many legs do insects have?” or “are bats birds or mammals” aren’t included. My salvation doesn’t depend on either of these pieces of info…