MILWAUKEE COUNTY (CBS 58) -- The Milwaukee County Zoo has free admission until Jan. 1.

It's a promotion called 'Frosty Free Week.'

Everybody gets in free from now until New Year's Day and it's a chance to see the animals at a different time of year than the typical warm weather months.

Animals like the polar bears and caribou thrive in colder weather but this year, you might see even more animals than usual in December.

"It's been so warm, so unseasonably warm this year that most of our animals are outside. Just a few that might not be out at this point of the year, but most are out and active and having a good time enjoying the mild weather," said Gary Lunsford, Director of Animal Management. 

The zoo is open Monday through Friday from 9:30 a.m. until 2:30 p.m.

On weekends, it's open until 4:30 in the afternoon. While admission is free, there is a charge for parking.