An elephant grazes on a Christmas tree during the feeding of animals with unused Christmas trees at the Zoo, in Berlin, Germany, Friday, Jan. 3, 2025. (AP Photo/Ebrahim Noroozi)

Giraffes graze on a Christmas tree during the feeding of animals with unused Christmas trees, at the Zoo in Berlin, Germany, Friday, Jan. 3, 2025. (AP Photo/Ebrahim Noroozi)

A giraffe grazes on a Christmas tree during the feeding of animals with unused Christmas trees at the Zoo, in Berlin, Germany, Friday, Jan. 3, 2025. (AP Photo/Ebrahim Noroozi)

An elephant grazes on Christmas tree during the feeding of animals with unused Christmas trees at the Zoo, in Berlin, Germany, Friday, Jan. 3, 2025. (AP Photo/Ebrahim Noroozi)

European Forest Reindeers graze on a Christmas tree during the feeding of animals with unused Christmas trees, at the Zoo in Berlin, Germany, Friday, Jan. 3, 2025. (AP Photo/Ebrahim Noroozi)

An elephant feasts on Christmas tree during the feeding of the elephants with unused Christmas trees, at the Zoo in Berlin, Germany, Friday, Jan. 3, 2025. (AP Photo/Ebrahim Noroozi)

Elephants graze on Christmas tree during the feeding of animals with unused Christmas trees at the Zoo in Berlin, Germany, Friday, Jan. 3, 2025. (AP Photo/Ebrahim Noroozi)

A European Forest Reindeer grazes on a Christmas tree during the feeding of animals with unused Christmas trees at the Zoo, in Berlin, Germany, Friday, Jan. 3, 2025. (AP Photo/Ebrahim Noroozi)