Spotted Hyaenas at Yorkshire WP, 18/01/20

In the (as yet-inaccessible) extension area.

Nice to see hyenas in the UK!

Is the construction fence the actual containment or is there more behind it that we can't see properly?

There are so many different poles and posts and fencings in the photo, I can't tell what is what!

The construction fence is just the edge of the development area (and presumably will disappear when the extension is open) - the containment is the fence behind. Follow along the mesh top line from one of the two tall yellow wooden poles and you're looking at it. (It appears to be electrified at the bottom half as well, but it's not easy to make out)