"Cac," the Cacnea replied, another "eh" type of sound, as it tilted its arms up in another shrug sort of motion. The Seel seemed to think it over, shuffling its flippers around a bit, before picking itself up and thrusting itself forward with a decided "Seel!"
Adrien released it as quickly as it was captured. Having had time to prepare himself, he was mostly unbothered by the moment. As it rematerialized, Adrien gave an impressed whistle. "Some move set. You're a lucky little guy, aren't you?" he asked with a grin.
It blinked as the light faded, looking up at Adrien and his newly materialized Pokedex. "Seel!" it barked with excited eyes, leaning forward and giving a pleased double-clap of its tail flippers at the compliment.
The Seel was carrying itself with a bit of difficulty, thrusting its heavy body forward with tandem motions of its flippers. The flippers swept forward, pushed down and back, and forward fell the Seel's torso as it lifted and repeated the motion. If nothing else, it looked like a good exercise. The Seel seemed determined in its movements, but keeping up with Adrien still looked like it might tire it out in time.
The Cacnea was likewise fairly slow, given its small "feet" and body shape, but despite its unimpressive waddle it was hardy and much more accustomed to moving on land.
This wasn't a group that was going anywhere very fast.