Sherry Apostolopoulos, left, looks at an exhibit of river otters with her granddaughter Raelyn, right, at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
A river otter chews on a block of ice with smelt at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
A Malayan tiger named Api licks on a frozen cube of goat milk next to a cow bone in a block of ice at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
A river otter chews on a block of ice with smelt at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
A black bear named Clark lies on a pile of crushed ice at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
A river otter holds a block of ice with smelt at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
A black bear named Lewis eats an apple while in a cool pool of water at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
Aldabra tortoises get sprayed with cool water at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
Children on a field trip from summer camp look at an exhibit at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
An employee wears a t-shirt reading Saving Wildlife in Wild Places at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
A river otter holds a block of ice with smelt at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
Mike Terrell, curator of animal experiences, sprays an Aldabra tortoise with cool water at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
A flamingo stands in the shade at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)
A Malayan tiger named Api carries a cow bone in a block of ice at the Palm Beach Zoo & Conservation Society Thursday, July 18, 2024, in West Palm Beach, Fla. The staff at the zoo use a variety of techniques to keep their animals cool during the hot summer months. (AP Photo/Lynne Sladky)