not only matter: they are all the rage !
Or, as we say in French, le dernier cri.
From a blog:
'I think this might be dog vomit slime mold (Fuligo septica.) That’s an unfortunate name for a very interesting bit of nature. In the plasmodium stage this slime mold is transparent before it goes on to become a sponge-like mass called an aethalium, which is pictured here. An aethalium is a “large, plump, pillow-shaped fruiting body.” This is also called scrambled egg slime mold because in Mexico, when it is in its plasmodium stage, it is collected and eaten like scrambled eggs. This is usually done on nights with the light of a full moon so the transparent plasmodium can be more easily seen.'