Dolphin

Dolphins are marine animals that were originally intended to appear in Age of Empires II: The Age of Kings, but instead, they were added with the Age of Empires II HD: The Forgotten expansion.

In the HD version, they are provided in the Scenario Editor, as animals that can be fished, yielding 350, as with the Marlin.

Trivia

 * Dolphins are one out of three non-fish species that can be fished in the Age of Empires series, the others being Box Turtles and Squids.