Scrambled egg or dog vomit slime.

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Found this on my raised bed yesterday & thought you might find it interesting.
Don’t panic, it’s utterly harmless to people, pets and plants. In fact, Fuligo septica is edible apparently native people in some parts of Mexico gather it and scramble it like eggs (I don’t fancy trying it tho). I hear they call this dish “caca de luna,” which I’ll leave you to translate.

It isn’t a fungus/mould,plant, animal or bacteria. It’s a plasmodium which essentially is one giant cell with millions of nucleii. It is formed when two spores come together in something a little bit like sex and begin dividing into a large creeping blob of protoplasm surrounded by a single membrane.
The plasmodium moves by slowly flowing or streaming, gradually engulfing and consuming fungi and bacteria that are present on decaying plant matter.
It eventually moves out to a more exposed location on top of mulch, pine straw, a stump, a low-growing plant, or even the foundation of a building. There it stops moving and transforms into a fruiting (spore-producing) body.
This is when Fuligo septica first gets noticed as a bright yellow, frothy mass a few inches to up to a foot in diameter.
It quickly fades to a dull orange and then a light tan as its surface dries to a crust.
After a few days it breaks apart to release its dark-coloured spores, which blow away to start the life cycle anew.
Within a week or two, all that’s left is a dusting of leftover spores and bits of grey or yellowish crust.

Here’s some pics: