Biodiversity represents all the different kinds of life you can find in one area - the variety of animals, plants, fungi and even micro-organisms such as bacteria that make up our natural world. But as humans put more pressure on the planet, using and consuming more resources than ever before, we are in danger of upsetting the balance of ecosystems and losing biodiversity. ZOO Bratislava on the occasion of the Biodiversity Day (22.5.) prepared together with the association BROZ (Bratislava Regional Conservation Association) celebrations in the grounds of the ZOO. The organizers and performers revealed the reasons for the decline of biodiversity and how to protect it.