'Rashi': Hashem will look at it. It will tremble from fear of Him.

Ibn Ezra: It is as if this animal takes the Yarden with its eyes. It intends to drink all of it. It is as if a hook punctured its nose, to open its nostrils to inhale.

Malbim: It wants to take the entire Yarden, with its springs.

'Rashi': Mokeshim is a fisherman's Kli to trap fish ¹ .

Malbim: It opens the holes of its nose which are full of traps, to trap all living beings in the Yarden.