The phrase "most highly evolved" is correct and usable in written English.
You can use it to describe something that has progressed further along in its development or evolution than other things. For example, "Humans are the most highly evolved species on the planet."
In the most highly evolved flying fishes, the pelvic fins are also enlarged and winglike.
Even though it is also one of the most highly evolved methods of contagion known to planet Earth.
In general, scorpions have the largest number of primitive arachnid features, and spiders and mites are the most highly evolved.
The suborder includes the most highly evolved members of the order and is represented by several thousand species distributed worldwide.
Mr. Sono's most highly evolved display of right-now seasonality is the kaiseki menu, a procession of courses following a model that evolved over centuries.
Chordate, any member of the phylum Chordata, which includes the vertebrates, the most highly evolved animals, as well as two other subphyla the tunicates and cephalochordates.
But the most elaborate and highly evolved Entertainer or Educator of Self was, hands down, the cultural critic and poet Wayne Koestenbaum.
At its best, which often it hasn't been of late, grime is the most sonically exciting, highly evolved movement in black music in a very long time.
Researchers, through understanding viral life cycles and gene function, have co-opted one of nature's most efficient and highly evolved mechanisms for infecting cells.
Most endurance sports are by now highly evolved, their training regimens a matter of science: if your goal is to become a world-class marathoner, for example, you will almost certainly run between 110 and 130 miles per week.
The most striking features of the more highly evolved lampridiforms, however, are peculiar to the group: great elongation of the trunk, accomplished by increase in vertebral number and elongation of the vertebrae themselves, and reduction of the tail to a small, asymmetrical or filamentous appendage.
