Iris, an orangutan at the National Zoo, let out a guttural distress call moments before Tuesday's earthquake struck. (BILL O'LEARY/THE WASHINGTON POST)

Clearly, humans weren’t the only D.C. residents stirred by this week’s tectonic activity. As you can see from the Storify, above, after Joel Achenbach’s story about National Zoo animals sounding an early quake alarm, East Coasters were watching their pets with hyper-vigilance.

Here, conservationist Jeff Corwin explains how animals at the National Zoo might’ve been able to predict the earthquake:

“... we can see that perhaps there is a connection between the change in the earth’s geology and that navigating ability, and we learn from that ability of nature and apply it to our own technology for survival.”

Watch the full interview here or view our related chat here :