
07-02-2023, 02:02 PM
|
 |
Senior Member
|
|
Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
Thanks: 3,506
Thanked 136,542 Times in 22,784 Posts
|
|
Unlike fish, sharks can only swim forward. That is because their fins are stiff and cannot be controlled by muscles.
|