A Darter (Anhinga novaehollandiae) swimming at Herdsman Lake in Perth, Western Australia. Its swimming action has been compared to that of a snake.

- Image ID: T9C97M
A Darter (Anhinga novaehollandiae) swimming at Herdsman Lake in Perth, Western Australia. Its swimming action has been compared to that of a snake.
David Steele / Alamy Stock Photo
Image ID: T9C97M
Location: Australia