I have found a few more old zoo photographs from my childhood in another photo album (see earlier uploads in the Borås and Kolmården galleries). The pictures in this album were dated so I know when they were taken.
Here is a series of pictures from Borås Zoo, taken in 1968.
This picture is so blurred that maybe I should not upload it, but I will so it anyway. It shows a part of the 1200 sq meter enclosure for lions.
Groundbreakingly big when created in the beginning of the 1960s but nothing special today. Sizewise it remains unchanged but is of course much better furnished these days.
And you CAN see the head of the male lion to the right of the cave, can´t you? :-)