"Drone imagery has created an opportunity for us to see into the lives of these animals in a way that has never been possible before." As for the salmon hat fad, experts are still none the wiser.

Visitors will find some animals featured in Stanley Field Hall getting into the holiday spirit by wearing Santa Claus hats.

They might be playing. “It’s a mystery,” she said. But they are probably not wearing it as a hat insofar as they are showing off their fashion sense or expressing their individuality, she added.

Perhaps the best animal story of 2024 came right at the end of the year, when orcas (Orcinus orca) started wearing salmon hats again after a 37-year hiatus from the fabulous fad. And while ...

In a specially built, three-story vertical aquarium, the cyborg hat-sporting jellyfish could swim 4.5 times faster than its regular counterparts. [Related: Even without brains, jellyfish learn ...

From left: Máximo the titanosaur, a pterosaur, the Quetzalcoatlus and Sobek the Spinosaurus, wear Santa Claus hats Friday at the Field Museum.