What is biologically difficult about having one horn?.
And the livyasan, salamandra, man/tree, etc..are “biologically possible”? Or are they all fables, chazal just blindly accepted what goyin said cv”s… there are only two roads in this issue, of unquestionably believing in chazal as representative of Torah misinai, or not…chas veshalom, the Torah that chazal gave us is incorrect – which road do you think leads to Hashem? Or do they allegorize olam haba too? To Hashem we’re all “mesholim”…they have no humility.
Biological possibility is defined as possible according to the biology that we see in front of us. Hashem made animals that we see, and there are other creations that work differently…if doesn’t take much emunah even to accept that.
Only if one begins with the premise that “life developed” is such a suggestion illogical, because development would seemt to be uniform.