In this handout photo released by Humane World for Animals, a chimpanzee formerly used in research receives a comprehensive health check at a retirement sanctuary for chimpanzees, in Bapakwali, Liberia, on Aug. 25, 2026. (Humane World for Animals via AP)

A two-month-old female Sumatran tiger cub observes the Attica Zoological Park near Athens, Greece, on Tuesday, Sept. 8, 2026, after its first vaccination and microchipping, as part of an effort to build a backup population of the critically endangered species. (AP Photo/Thanassis Stavrakis)

A two-month-old female Sumatran tiger cub growls after its first vaccination and microchipping at Attica Zoological Park near Athens, Greece, on Tuesday, Sept. 8, 2026, as part of an effort to build a backup population of the critically endangered species. (AP Photo/Thanassis Stavrakis)

Veterinarian Arsinoi Psaroudaki, right, gives a two-month-old Sumatran male tiger cub a first vaccination and microchipping, as mamal curator Antonis Balas holds the animal at Attica Zoological Park near Athens, Greece, on Tuesday, Sept. 8, 2026, as part of an effort to build a backup population of the critically endangered species. (AP Photo/Thanassis Stavrakis)

Two male two-month-old Sumatran tiger cubs receive their first vaccination and are microchipped at Attica Zoological Park near Athens, Greece, on Tuesday, Sept. 8, 2026, as part of an effort to build a backup population of the critically endangered species. (AP Photo/Thanassis Stavrakis)

A two-month-old Sumatran tiger cub is weighed before its first vaccination and microchipping at Attica Zoological Park near Athens, Greece, on Tuesday, Sept. 8, 2026, part of an effort to build a backup population of the critically endangered species. (AP Photo/Thanassis Stavrakis)

This photo taken with a smartphone shows Democratic gubernatorial candidate Keisha Lance Bottoms signing a campaign sign for a supporter during an Atlanta-North Georgia Labor Council (AFL-CIO) Labor Day lunch in Hapeville, Ga., Monday, Sept. 7, 2026. (AP Photo/Bill Barrow)

Troy Jackson, Democratic candidate for U.S. Senate, speaks to attendees at the Southern Maine Labor Council breakfast, Monday, Sept. 7, 2026, in South Portland, Maine. (AP Photo/Robert F. Bukaty)