Amoebas are probably my favorite animalcule.
I have seen this type of Amoeba before, which is commonly called "Astramoeba Radiosa". Turns out there is a backstory to the naming of this lifeform.
First named by Christian Gottfried Ehrenberg in 1830, it was further defined in 1923 as "Body spheric. Pseudopods more or less rigid, not withdrawn and reformed rapidly. One nucleus, spheric. Habitat algae; widely distributed. (ref. ID; 1923)".
Further, it has been observed more recently that this is the form many amoebas take when floating freely, and if the amoeba would touch down (onto the substrate) instead of floating, it would take on a different shape, one that could be further classified instead of just Astramoeba Radiosa.
This specimen also resembles the floating stadium of Mayorella-like specimen.
What does all this prove? For one, classification is difficult, at least with entry-level microscopes. Secondly, the more we observe, the more we learn!
This footage obtained using a Hayear 500 camera, with a Swift SWB350B microscope, connected to a Windows laptop; water sample from a plate filled with debris and rainwater in my yard.
Original music/video "Lo and Slow" by My-Fi Saloon (originally Lo-Fi Saloon) @my-fisaloon8370
29 сен 2024
