What does Shark look like on Google?

On Google it is the design shipped in 17.0, shown above at full size. Older revisions are listed beneath it.

When did Google add Shark?

Google first drew Shark in Android 7.0, released August 22, 2016.

Google LLC has shipped 17 versions of Shark. Each is dated, so you can see when the design changed.

Google Android 8.0

Google shipped a new design for Shark in Android 8.0, released August 21, 2017. The previous design is shown beside it.

✳ marks a release that redrew this emoji. The rest re-shipped the design unchanged.

What does Shark look like on Google?: On Google it is the design shipped in 17.0, shown above at full size. Older revisions are listed beneath it.
When did Google add Shark?: Google first drew Shark in Android 7.0, released August 22, 2016.
How many times has Google redrawn Shark?: Google LLC has shipped 17 versions of Shark. Each is dated, so you can see when the design changed.