For one time only, the San Francisco Zoo will be FREE to all who visit on January 29, 2016! (pic by May Woon) pic.twitter.com/jXXaTaqDKL — San Francisco Zoo (@sfzoo) January 29, 2016

Hey, are you "working from home" today due to the Super Bowl mess downtown? Or just looking for a reason to flake? Then maybe a free trip to the SF Zoo is in order.

The Zoo, which typically charges a (staggering to some) $16 per adult ticket, has a number of days during the year when San Franciscans can get in gratis with proof of residence. As the Zoo noted via Twitter, however, today's free day extends to everyone, not just folks with SF ID.

And there's plenty to do at the Zoo today! Here's today's keeper talk and feeding schedule:

One thing you won't be able to check out today: Most of their lions. That's because they need privacy because they are doin' it! For real. Per the Zoo:

Starting Thursday August 13, The Lion House will be closed to the public. Our lions, Jahari, Sukari and Amanzi are part of the African Lion Species Survival Program (SSP), and as with our other SSP cat species, such as Sumatran tigers and fishing cats, they are in an active conservation breeding program. As we have done in the past, we will be closing the Lion House to give them more privacy for this process. While the lions will be provided the opportunity to come and go from habitat to the back of house all of our other cats will be visible outside in their exhibits.

The Zoo's open from 10 a.m. to 4 p.m. today, with the last visitors allowed in at 3:30. So if you're looking for some animal therapy on the cheap, flake on work and head over.