A video of a battle between two protozoa appeared. At the end of the fight, one eats the other

Protists themselves are a paraphyletic group that includes all eukaryotic organisms that are not included in

composition of animals, fungi and plants. The name was introduced by Ernst Haeckel in 1866, but in the modern sense it was first used in 1969 by Robert Whittaker, author of the “five kingdoms system.”

Protists are the most important bacteria consumers in the world.

In the video you can see how Euplotes sp.creates water currents with its finger-like antennae. These currents bring bacteria, sometimes Tetrahymena and other smaller organisms (such as algae) into its oral groove (the equivalent of a mouth), and this is how it feeds.

These two types of ciliates are widespread inmarine and freshwater environment. Most are free-living, but two were Euplotes sp. registered as commensal organisms in the digestive tract of sea urchins

Duke University biologist Jean Philippe Gibertexplains: “Despite their small size, there is twice as much protist biomass in the world as animal biomass. This means that if you add up all the lions, zebras, elephants, spiders, whales, etc., and weigh them, and do the same with all these single-celled organisms, you end up with twice the weight of the total cells than all animals put together. "

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