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Thank you all for such pleasant comments!

What is observed is the detachment of a gas vacuole. Arcellae use this type of vacuoles to regulate their buoyancy, to escape or to turn his theca

Thank you for such kind comments! Charlie Guevara: I have not eliminated any type of residue through image processing. I place the collected sample in a petri dish and select the specimen with the help of a stereo microscope and a Pasteur pipette. If done carefully (and with the help of luck) it is ...

A large ciliate with a very characteristic mouth

¡Bello video!
La mayor parte de los cristales que muestras son de morfología esferulítica

Thanks Dennis and Einman!

Hi all,
I present a video on the colonial ciliate Carchesium polypinum.

Thank you for such kind comments!
Javier: The first part is filmed from the specimens generated after the reproduction process.

In the first part of the video the main organs of this predatory ciliate are identified.
The second part shows the end of a reproduction process (division or conjugation?)

Thanks for your comments Louise and Macnmotion! Macnmotion: In flatworms protonephridia helps in osmoregulation or ion-regulation. They are also helpful in excretion. According to K. LARSSON and W. WILLEMS (Report on freshwater Catenulida (Platyhelminthes) from Sweden with the description of four ne...

Thanks for such kind comments!

Very nice video and excellent information!

Excellent!

It is the flatworm Catenula lemnae, which reproduces asexually by producing new worms growing from the posterior end of the animal.

Thank you for such favorable comments!

Happy New Year!

Thank you for your kind comments!

Great photos and information

A more flattened variety and less frequent than the more common Netrium digitus var. digitus. Those interested can see this last variety in: https://youtu.be/Ab0N6rw6ZYM

Thanks for your comments! Wes: I took the sample on the banks of the Ibaizábal river, among a dense proliferation of spirogyra-type algae, along with bottom debris. You can see a photograph of the collection point at the end of the video. At the moment the river has very little flow due to the treme...

If you want to learn more about this gigantic amoeba: https://www.arcella.nl/
An excellent page on all kinds of amoebae

Very nice!

Yeas Javier, the same method.
Thanks for your comments!

Nice video!
This is Rotaria tardígrada, in this rotifer the cuticle is usually covered with debris. It is a Bdelloid rotifer without lorica.
Another view of this rotifer:
https://youtu.be/uDaA6_vp2sY

Excellent video!

Excellent!