Many of the Zagreb reptiles are unfortunately not on display or ZTL is probably not exactly up to date, but collection is indeed very interesting. The pictures that you shared are from the Tropical hall and many of those exhibits are actually occupied by mammals.
Although it must be noted that a) a lot of unusual ectotherm taxa *are* on display even within the Tropical House and b) the photographs which
@Coelacanth18 posted all show ectotherm exhibits
overall I would estimate that between half and two-thirds of the ectotherm collection is onshow, with the majority of the offshow species comprising pit-vipers and Eurasian true vipers.
ZTL is actually pretty accurate for the collection, as it happens - after my last visit in May 2024 I dealt with those species which I was able to confirm were no longer present within the collection whatsoever.
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And now for the promised run-through of what Zagreb has to offer:
As
@twilighter notes, one of the major highlights of the zoo as a whole is the vivarium building; the lower floor contains several exhibits for amphibians and invertebrates, whilst the upper floor contains the "Snakes of Croatia" exhibition (a near-complete set of all snake species native to the country, lacking only the European Blind Snake), the cave exhibit for Olm, and two of the offshow viper breeding rooms - one of which can be partially viewed through a window.
The exhibits are accompanied by a wide range of educational signage, including significant material covering the two major conservation projects undertaken by Zagreb relevant to the species displayed within this area - the Proteus Project, focusing on the wild and captive conservation of the Olm, and a captive breeding and reintroduction project for the native subspecies of the Meadow Viper. Along with the one or two individuals of the latter on-display within this area of the zoo, there is a fairly sizeable offshow population held throughout the various offshow viper rooms across the zoo - including both captive-bred individuals, and young born to females collected from the wild whilst gravid, the latter of which are reintroduced to the wild once fully-grown.
This fire-safety floorplan of the upper floor of the vivarium provides a fairly good outline of the contents; the outer ring contains the exhibits for native snakes, the inner core is the dark cave exhibit for Olm, and the two offshow viper facilities are also visible:
As regards the Tropical House, the following photographs provide a fairly good overview of the exhibit and signage standards found within,
@Coelacanth18 having already provided pretty good general images:
Beyond these two major exhibit hubs, there are other ectotherm species scattered throughout the zoo - most notably a handful of African species displayed in a small indoor area immediately-adjacent to the lion exhibit, and a small house for North American fish, reptiles and amphibians not far from the Tropical House:
I'll do a run-through of Copenhagen tomorrow
unless someone beats me to it!
