Yehudis – do yourself a favor and. Read. Hashkofo. Seforim.
You clearly haven’t. If you believe you’re emotionally ready to accept the truth no matter what it is or how it makes you feel, then open a shaar bitachon and go through it – just once would dispel your claims.
Which species have gone extinct? The mabul eliminated some, but rav hirsch writes that it’s impossible to make a species extinct afterwards.
Maybe take your head out of the museum of natural history, learn seforim with humility and without preconceived notions – it’s a good idea whether I’m right or wrong, no?