" Uexküll begins by carefully distinguishing the Umgebung, the
objective space in which we see a living being moving, from the
Umwelt, the environment-world that is constituted by a more or
less broad series of elements that he calls “carriers of significance”
(Bedeutungsträger) or of “marks” (Merkmalträger), which are the
only things that interest the animal. In reality, the Umgebung is
our own Umwelt, to which Uexküll does not attribute any particular
privilege and which, as such, can also vary according to the point of view from which we observe it. There does not exist a forest
as an objectively fixed environment: there exists a forest-forthe-park-ranger,
a forest-for-the-hunter, a forest-for-the-botanist,
a forest-for-the-wayfarer, a forest-for-the-nature-lover, a forest-forthe-carpenter,
and finally a fable forest in which Little Red Riding
Hood loses her way. Even a minimal detail—for example, the
stem of a wildflower—when considered as a carrier of significance,
constitutes a different element each time it is in a different environment,
depending on whether, for example, it is observed in the
environment of a girl picking flowers for a bouquet to pin to her
corset, in that of an ant for whom it is an ideal way to reach its
nourishment in the flower’s calyx, in that of the larva of a cicada
who pierces its medullary canal and uses it as a pump to construct
the fluid parts of its elevated cocoon, or finally in that of the cow
who simply chews and swallows it as food. "

― Giorgio Agamben , The Open: Man and Animal