The image provides strong visual clues but not enough evidence for absolute certainty.
That is why “likely” is a more responsible word than “definitely.”
The Most Important Clue May Be What Is Missing
Notice that the object does not appear to have obvious metal, plastic, paint, wiring, or other manufactured features.
Its surface looks earthy and granular.
There are no obvious machine-cut edges.
There are no visible fasteners.
The structure is irregular.
And the repeated bumps appear to be part of the material itself.
Those characteristics make a natural or biological explanation more plausible than an aircraft part.
But again, a closer physical examination would be needed to know for certain.
If You Found This, Would You Know What It Was?
That’s the fun part.
Put the object on a table without any context and ask ten people what they think it is.
You might hear:
“A fossil.”
“Coral.”
“A dried mushroom.”