The Megabunus lesserti Schenkel harvestman is one of 150 endemic animal species (meaning it is restricted to one specific geographic area) currently found in the National Park area. In general, arachnids are hidden from human view, given that they live in the vertical limestone rocks of the alpine levels.

The sandpiper, an especially rare species of wading bird, can be spotted on the gravel banks and islands of the Gesäuse. Due to the fact it lays its eggs well-camouflaged between the stones and rears its young there, entering gravel banks away from marked exit and entrance points is strictly prohibited.

The chamois prefer the rocky habitat but are also able to climb down into the valley. Mammals can even be spotted on the steepest rock faces in the Gesäuse National Park. During the mating season that takes place in November, bucks engage in daring pursuits in order to gain the favour of goats.

The graceful common pink can only be seen in the region between Dachstein and Hochschwab. The pink-coloured flowers of the endemic plant species can be seen from May to July and give off a pleasant, honey scent. However, interventions in its habitat mean the attractive plant is highly endangered outside of the National Park.

The protected north-east alpine poppy is also one of the endemic plant species in Styria. It can be found in the Gesäuse mountains both on the rubble heaps at the higher altitudes and in gravel channels near valleys.

The lady’s slipper orchid is the largest native species of orchid in Austria and is under strict protection. This plant is interesting, not least because of the special way in which it reproduces, which requires pollination by wild bees. Once these insects have landed in flowers that are insect traps, they can no longer leave the plant without removing a mass of pollen on their backs.