In the vastness of the Hortobágy National Park in Hungary, a herd of rare Przewalski's horses grazes. In the last century, they disappeared into the wild. Specialists had to turn to the breeding program. Now there are about 2000 Przewalski's horses in the world. About 300 live in this reserve. Hungarian scientists have been observing animals for 20 years. Now drones are helping them. This makes it easier...
