|Photo by mikebaird|
When harbor seals are in their element--water--they tend to be very curious. They'll check out boaters as well as surfers, and will swim parallel to people walking along the shoreline.
When the animal dives, it closes off nostrils and earholes, and its heart rate slows to 10% of its capacity. Blood flow remains strong to the heart and brain, but dawdles to the extremities. A harbor seal can hold its breath for 20 minutes in dives that reach nearly 300 feet below the surface. But most of the time the seal is underwater for just 3 to 5 minutes before popping its head up for a quick look around.
Have you ever watched seals--or had them watch you?