What are the other possibilities?
Trying to identify which animal should be translated as what is kinda tricky since the phrases are usually hapax legomena, words only used in that passage and in no other known ancient literature.
That is why it is silly to read the Bible for scientific precision. The Fundamentalist Christians who do so are just as erroneous as the secularists who do so. Both misread Scripture in a way it neither claims nor can sustain.