The Biblical Zoo in Jerusalem has successfully reintroduced 20 Persian (Mesopotamian) fallow deer into the wild this spring. The release marks a bold new chapter for the species, once teetering on the brink of extinction.
“We’re beyond excited to share that our Spring 2025 Persian (Mesopotamian) fallow deer release has successfully reintroduced 20 captive-bred deer into the wild!” the zoo announced.
This release took place at Nachal Dolev Nature Reserve, nestled in the scenic Judean Hills, just 25 kilometers from Jerusalem.

The location is significant. For two decades, the zoo has been working tirelessly to restore the Persian fallow deer population through carefully managed releases. Now, for the first time, the deer are being returned to new territory closer to Jerusalem, allowing them to reclaim portions of their ancient habitat.
“After 20 years of successful reintroductions, we’re now expanding to new territory near Jerusalem, helping this once nearly extinct species reclaim its ancient homeland!” the zoo shared.
The latest release also marked a major shift in strategy. In past efforts, the deer were gradually introduced to the wild using fenced acclimatization areas, allowing them time to adjust to their new surroundings. This time, however, the zoo’s team took a more daring approach.
“For the first time, we released the deer directly into the wild—without a fenced acclimatization area!” they said.
Extensive research conducted over the years had shown that the fallow deer are remarkably adaptable and capable of thriving in the Judean Hills, where food sources and water are plentiful.

To ensure the safety and success of the reintroduction, each deer has been fitted with an electronic tracking collar.
These devices enable the zoo’s scientists to monitor the animals’ movements and behaviors in real time, providing critical data on how the deer adjust to their new environment. The information gathered will help guide future conservation efforts, both in Israel and abroad.
Beyond the scientific achievement, the release was also a day of celebration.
“The day itself was a celebration—a joyful outing in the stunning spring landscape, surrounded by wildflowers and perfect weather,” the zoo reported.
Staff, scientists, and volunteers gathered to witness the culmination of years of hard work and dedication. “It was a well-earned reward for our dedicated staff and volunteers, whose tireless efforts are bringing this majestic species back to life.”
The success of the Persian fallow deer restoration project is a poweful conservation statement in a war-torn part of the world.
Thanks to the Biblical Zoo and its partners, these graceful creatures now roam once again where their ancestors once thrived—a living symbol of renewal in the land of their origin.
To contribute to this restoration program click here.
Chester Moore
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