More images of what I see under the microscope. This was algae (little dots) and ???? from the wildlife water bucket.
This thing would pulse, expanding its "mouth" and then suddenly shrinking back into a ball, then expanding again, over and over. Google images isn't helping ID it.
@peeppeepcircus @CJLavoie Your photo'd bug has characteristics that are shared by protozoans & specifically ciliated protozoans. These single celled organisms have structures called cilia that look like short hairs on their bodies which are used for locomotion primarily and also used for creating water vortices that draw in food into their "mouths". 1/x
@peeppeepcircus @CJLavoie They absolutely do make fascinating photos. As with any photo shot, you have to be present at the right time for them to reveal themselves for just the right shot.