A frog sits on the outskirts of a pond June 25, 2017, at Acadia National Park, Maine.

A horse grazes Wednesday, May 27, 2020, on Assateague Island National Seashore.

Two deers peer over the brush Wednesday, May 27, 2020, on Assateague Island National Seashore.

A foal drinks milk from its mother Wednesday, May 27, 2020, on Assateague Island National Seashore.

A rabbit freezes in its tracks Wednesday, May 27, 2020, on Assateague Island National Seashore.