Free Unicellular Videos
Unicellular videos and clips for free download in 4K & HD for your next video project.
Sorry, no clips were found! Browse
Sponsored by iStock
LIMITED DEAL: Save 20% on 4K Video from iStock
![](https://media.istockphoto.com/id/1329830505/video/small-groups-of-unicellular-algae-float-in-liquid-under-a-microscope-research-in-a-biological.jpg?b=1&s=640x640&k=20&c=jUz7pMDGSaL9G-H0ZsIRF1K2EBzx5wfIwvZ0xU9Zgk0=)
Small groups of unicellular algae float in liquid under a microscope. Research in a biological laboratory. 1000x magnification.
![](https://media.istockphoto.com/id/1329813810/video/dried-unicellular-algae-on-a-slide-under-a-microscope-research-of-biochemical-processes-of.jpg?b=1&s=640x640&k=20&c=QKGbf50XrkG6LeMSa0Cc3vCAufXRhehDAApjJgtuRxU=)
Dried unicellular algae on a slide under a microscope. Research of biochemical processes of the world ocean. Building a forecast of planetary climate change
![](https://media.istockphoto.com/id/1270337923/video/stentor-genus-of-trumpet-shaped-contractile-uniformly-ciliated-protozoans-they-are-found-in.jpg?b=1&s=640x640&k=20&c=onXR4eOwmZoJ2werLMhcp_PBOX0ZlidhlkEjuEOaYLg=)
Stentor, genus of trumpet-shaped, contractile, uniformly ciliated protozoans.They are found in fresh water, either free-swimming or attached to submerged vegetation.
![](https://media.istockphoto.com/id/1297036743/video/microscopy-of-protozoa-microorganisms-in-the-water-showing-ciliates-paramecium-bacteria.jpg?b=1&s=640x640&k=20&c=jataY1mpgNOCkKG4HJwhE4g7L10r063x7O9jM0JPapw=)
Microscopy of protozoa microorganisms in the water, showing ciliates, paramecium, bacteria spirochaete and algae. Motion of single-celled animals (infusoria) under microscope.
![](https://media.istockphoto.com/id/1297039404/video/microscopy-of-protozoa-microorganisms-in-the-water-showing-ciliates-paramecium-bacteria.jpg?b=1&s=640x640&k=20&c=RGHzgCd32x6kqEBEXNGwhmML0flTJpNYzotxwhQXoe4=)
Microscopy of protozoa microorganisms in the water, showing ciliates, paramecium, bacteria spirochaete and algae. Motion of single-celled animals (infusoria) under microscope.
![](https://media.istockphoto.com/id/1297038095/video/microscopy-of-protozoa-microorganisms-in-the-water-showing-ciliates-paramecium-bacteria.jpg?b=1&s=640x640&k=20&c=1JCwAOaAUJRmiA6hkKqczGN4gx8bpcRrivU_KRzTKv0=)
Microscopy of protozoa microorganisms in the water, showing ciliates, paramecium, bacteria spirochaete and algae. Motion of single-celled animals (infusoria) under microscope.
![](https://media.istockphoto.com/id/1297039188/video/microscopy-of-protozoa-microorganisms-in-the-water-showing-ciliates-paramecium-bacteria.jpg?b=1&s=640x640&k=20&c=B3fBXwMxli6YagLAQb1jLB-FudijBbHlJjCjnWnvXSw=)
Microscopy of protozoa microorganisms in the water, showing ciliates, paramecium, bacteria spirochaete and algae. Motion of single-celled animals (infusoria) under microscope.
![](https://media.istockphoto.com/id/1297035296/video/microscopy-of-protozoa-microorganisms-in-the-water-showing-ciliates-paramecium-bacteria.jpg?b=1&s=640x640&k=20&c=m_6tK1BXgqvpB854UAAMlXwA_ghJj8DXYnaOF3oWcDA=)
Microscopy of protozoa microorganisms in the water, showing ciliates, paramecium, bacteria spirochaete and algae. Motion of single-celled animals (infusoria) under microscope.
![](https://media.istockphoto.com/id/1298934080/video/microscopy-of-protozoa-microorganisms-in-the-water-sample-showing-ciliates-paramecium.jpg?b=1&s=640x640&k=20&c=3ujSSUOwVoHtK0SifENaOGK1xjAisQfUtKkHDy5vsdw=)
Microscopy of protozoa microorganisms in the water sample, showing ciliates, paramecium, bacteria, spirochaete and algae. Motion of single-celled animals under microscope.
![](https://media.istockphoto.com/id/1297038371/video/microscopy-of-protozoa-microorganisms-in-the-water-showing-ciliates-paramecium-bacteria.jpg?b=1&s=640x640&k=20&c=psLkr5kpffc8fERrf2JCo3mTb5h_gLDx3zVgQ54aaEc=)
Microscopy of protozoa microorganisms in the water, showing ciliates, paramecium, bacteria spirochaete and algae. Motion of single-celled animals (infusoria) under microscope.
![](https://media.istockphoto.com/id/1298939036/video/microscopy-of-protozoa-microorganisms-in-the-water-sample-showing-ciliates-paramecium.jpg?b=1&s=640x640&k=20&c=FP67mov4GMmxNu5CYABbu4_-19USbIbRUJOhCnIctGM=)
Microscopy of protozoa microorganisms in the water sample, showing ciliates, paramecium, bacteria, spirochaete and algae. Motion of single-celled animals under microscope.
![](https://media.istockphoto.com/id/1297037700/video/microscopy-of-protozoa-microorganisms-in-the-water-showing-ciliates-paramecium-bacteria.jpg?b=1&s=640x640&k=20&c=l9snfGH5dW0sJD4zdCwR_fwNx4vcA0yphcb7IDMB3Pg=)
Microscopy of protozoa microorganisms in the water, showing ciliates, paramecium, bacteria spirochaete and algae. Motion of single-celled animals (infusoria) under microscope.
![](https://media.istockphoto.com/id/1297042521/video/microscopy-of-protozoa-microorganisms-in-the-water-showing-ciliates-paramecium-bacteria.jpg?b=1&s=640x640&k=20&c=T43qZcgXpcZibi7ORzzXftJLbPoceb45GMtGSUW70Ew=)
Microscopy of protozoa microorganisms in the water, showing ciliates, paramecium, bacteria spirochaete and algae. Motion of single-celled animals (infusoria) under microscope.
![](https://media.istockphoto.com/id/1298926804/video/microscopy-of-protozoa-microorganisms-in-the-water-sample-showing-ciliates-paramecium.jpg?b=1&s=640x640&k=20&c=K9MwRDWRnsuVYedmd9Hbh5vhlyh_3r5Jce60TRRJ7WE=)
Microscopy of protozoa microorganisms in the water sample, showing ciliates, paramecium, bacteria, spirochaete and algae. Motion of single-celled animals under microscope.
![](https://media.istockphoto.com/id/1298935333/video/microscopy-of-protozoa-microorganisms-in-the-water-sample-showing-ciliates-paramecium.jpg?b=1&s=640x640&k=20&c=BgTqmgtPQnEhXSS31qIy-JFUjjphwtCdgqLqs-BRo1M=)
Microscopy of protozoa microorganisms in the water sample, showing ciliates, paramecium, bacteria, spirochaete and algae. Motion of single-celled animals under microscope.
![](https://media.istockphoto.com/id/1315849177/video/closep-up-on-colony-of-unicellular-green-algae-mermaids-wine-glass-or-mermaids-cup-slow.jpg?b=1&s=640x640&k=20&c=1gj6RJp9fBXeAharpTkkBPxDvEolQftf_6Od3QBxv4w=)
Closep-up on colony of unicellular green algae Mermaid's wine-glass or Mermaid's cup (Acetabularia acetabulum) Slow motion, Movement forward. Adriatic Sea, Montenegro, Europe
![](https://media.istockphoto.com/id/1297040968/video/microscopy-of-protozoa-microorganisms-in-the-water-showing-ciliates-paramecium-bacteria.jpg?b=1&s=640x640&k=20&c=27n9qQcu0KMJWmg33p_6lZ9mA8ladxqhohoWh4ZtvWQ=)
Microscopy of protozoa microorganisms in the water, showing ciliates, paramecium, bacteria spirochaete and algae. Motion of single-celled animals (infusoria) under microscope.
![](https://media.istockphoto.com/id/1297035721/video/microscopy-of-protozoa-microorganisms-in-the-water-showing-ciliates-paramecium-bacteria.jpg?b=1&s=640x640&k=20&c=H-GRrAxyaJle2trm5SNzbCpQrg3Btg6JzyPf5Xm5uJY=)
Microscopy of protozoa microorganisms in the water, showing ciliates, paramecium, bacteria spirochaete and algae. Motion of single-celled animals (infusoria) under microscope.
![](https://media.istockphoto.com/id/1298937437/video/microscopy-of-protozoa-microorganisms-in-the-water-sample-showing-ciliates-paramecium.jpg?b=1&s=640x640&k=20&c=oNVAvxNF9jLA5Bd813zDbx7ZnV0Wh2tuGvuiIgx3_uQ=)
Microscopy of protozoa microorganisms in the water sample, showing ciliates, paramecium, bacteria, spirochaete and algae. Motion of single-celled animals under microscope.
![](https://media.istockphoto.com/id/1297039856/video/microscopy-of-protozoa-microorganisms-in-the-water-showing-ciliates-paramecium-bacteria.jpg?b=1&s=640x640&k=20&c=sxhJui5bHhY3YwNvg1l9_yaSjNH7Ufdpdc3dhoxHUeA=)
Microscopy of protozoa microorganisms in the water, showing ciliates, paramecium, bacteria spirochaete and algae. Motion of single-celled animals (infusoria) under microscope.
![](https://media.istockphoto.com/id/1297040718/video/microscopy-of-protozoa-microorganisms-in-the-water-showing-ciliates-paramecium-bacteria.jpg?b=1&s=640x640&k=20&c=7LtXIbLGMeWsnXdprJK7WhGfFj-fhP-L2y8lpaNkgTs=)
Microscopy of protozoa microorganisms in the water, showing ciliates, paramecium, bacteria spirochaete and algae. Motion of single-celled animals (infusoria) under microscope.
![](https://media.istockphoto.com/id/1298932677/video/microscopy-of-protozoa-microorganisms-in-the-water-sample-showing-ciliates-paramecium.jpg?b=1&s=640x640&k=20&c=aI-HtZkuk_nFFvJ9mMm5Vi_U03KbFrFPd59zmdTpgBo=)
Microscopy of protozoa microorganisms in the water sample, showing ciliates, paramecium, bacteria, spirochaete and algae. Motion of single-celled animals under microscope.