Another word for bear on

I won't say—'cause if I told you you'd be so scared you'd go running out here like there was a bear on your ass.

I never had a bear on the place until you came along.

Anyway, I meant I've never seen a bear on this land before.

Vinnie paced up and down, grumbling like a bear on the first day of spring.

The arches bear on the convex outer side the delicate arborescent gills, and on the concave inner side develop a membranous septum with vermicular perforations, a special sifting or filtering contrivance through which the water absorbed by the mouth has to pass before reaching the respiratory organs of the branchial apparatus.