O.K., let's call beetles a FAIL. YEC has nothing to tell us about how we got 40% of the insects on earth. Good to know. Let's try some mammals, because apparently YEC so-called "science" is only concerned with them, despite them being one of the smaller classes of creatures. (And don't even ask about plants.) Let's talk rodents. Rodents are an order of mammals. There are over 2000 known species of them, organized into around 35 families. One such family is the Muridae, which includes mice and rats. Of the genus Rattus (rats) there are around 56 known species. There are other genera that could be included as rats, such as
Lenothrix,
Anonymomys,
Sundamys,
Kadarsanomys,
Diplothrix,
Margaretamys,
Lenomys,
Komodomys,
Palawanomys,
Bunomys,
Nesoromys,
Stenomys,
Taeromys,
Paruromys,
Abditomys,
Tryphomys,
Limnomys,
Tarsomys,
Bullimus,
Apomys,
Millardia,
Srilankamys,
Niviventer,
Maxomys,
Leopoldamys,
Berylmys,
Mastomys,
Myomys,
Praomys,
Hylomyscus,
Heimyscus,
Stochomys,
Dephomys, and
Aethomys, and each of these have several species. There are many other creatures called rats, not in this genus, such as Kangaroo rats and bandicoot rats.
So, again, about how many rats did Noah take on board, 2, 112, or some much larger number?
How did we get the many different species of rat we see today?
btw, rats are prohibited as food, so it was important for the ancient Jews to know which is which.
How do you do that, in your system?