A salp was a marine invertebrate with a barrel-shaped body that was almost completely transparent.
It generally measured between one and ten centimeters long.
It usually lived in cold waters and was mostly found in the Southern Ocean.
One unusual feature of salps lay in their circulatory systems, which differed from normal blood circulation.
Salps had open circulatory systems.
The direction of their blood flow reversed every few minutes.
Though salps were tiny and inconspicuous, they played an enormous role in the ocean's carbon cycle.
After salps consumed phytoplankton that grew by using carbon dioxide in the ocean,
they could, through "fecal pellets,"
transport tons of carbon dioxide from the ocean surface into the deep sea.
That kept it out of the atmosphere for the time being.
But no matter how transparent a salp was, it could still be seen with the naked eye.
After all, while its body was transparent, its blood would still show through it.
Yet this transparent creature Ye Yuan saw now...
Forget about seeing its blood—even after using all his perception, he could barely detect its faint fluctuations.
Could it be another mutant beast?
And an extremely rare mutated salp at that?
Even Ye Yuan hardly dared believe his own guess.
After all, it was already incredibly difficult for a species to mutate.
And salps were exceedingly rare creatures of the sea to begin with. How could a mutation have appeared among them?
Although he himself found his deduction hard to believe,
if this thing was not a salp, Ye Yuan truly could not think of what else it could be.
Unless this creature had developed invisibility after mutating, it could not possibly be so bizarre.
But wasn't invisibility something that only existed in science-fiction movies?
Could this world truly contain creatures capable of genuine