Tuesday, April 28, 2020

Double header

Another couple of photos from old storage. These were tiny critters from the aquarium, back in 2010. I had removed them to a plastic lid to look at them.

And here's a critter with two (or is it three?) heads.

Three stubby isopods, and one miniature hermit.

Hermits don't seem to mind having stuff piled on top. This little guy is carrying two stubbies.

Stubby isopods: about 6 mm. long. Their scientific name, Gnorimosphaeroma oregonensis, is 'way longer than they are.

The hermit, out from under the isopods. And a mussel, reaching out.

Mussels "walk" by extending a long foot, grabbing, and contracting the foot, reaching, grabbing, shrinking, over and over. It's a slow process, but they're not really in a hurry. Once they've found a good spot, they'll tie themselves down and stay put.

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Estas son otras fotos que se habían quedado sin procesar, desde el año 2010. Son animalitos del acuario; los había puesto en una tapa de plástico para observarlos.

En la primera foto, aparece un animal con dos cabezas. O no; son tres criaturas amontonadas. Encima, un par de isópodos "chaparritos", Gnorimosphaeroma oregonensis. Y abajo, un cangrejo ermitaño, muy pequeño. Los isópodos miden 6 mm. o menos.

En la segunda foto aparece también un mejillón miniaturo, con su "pie" extendido. Los mejillones caminan extendiéndo ese pie, agarrándose de lo que toquen, contrayendo el pie, jalando el cuerpo hacia el nuevo punto de contacto. Muy lento, pero los mejillones no tienen prisa. Para la mayor parte de su vida, se van a quedar atados en un solo sitio. No necesitan buscar comida; filtran el aqua que los baña.




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