Everything in the waters that does not have fins and scales is detestable to you.
You shall regard them as detestable; you shall not eat any of their flesh, and you shall detest their carcasses.
“And these you shall detest among the birds; they shall not be eaten; they are detestable: the eagle, the bearded vulture, the black vulture,
So Aaron stretched out his hand over the waters of Egypt, and the frogs came up and covered the land of Egypt.