Question

complete the text with the better conjunctive adverb.

when hunting prey at night, japanese sea catfish use their sense of smell, their hearing,
and their ability to detect vibrations. ______, as scientists have recently discovered,
these fish can additionally notice slight chemical changes in the water that indicate the
presence of sea worms.

however also

Explanation:

The first part of the text describes the senses Japanese sea catfish use for hunting. The second part adds another ability (noticing chemical changes) that they have for hunting. "Also" is used to add information, while "However" is for contrast. Since this is an addition of a new ability, "Also" is appropriate.

Answer:

Also