こうした熊独特の特徴が、熊が動かずに狩猟すること（アザラシの呼吸孔の脇でじっと動かず、アザラシが海面に上がってくるのを待つ）を好む説明になっている。

Sentence Analyzer

English Translation

These special characteristics explain its preference for still-hunting (lying motionless beside a seal's breathing hole, waiting for one to surface).

Furigana

こうした熊(くま)独特(どくとく)の特徴(とくちょう)が、熊(くま)が動(うご)かずに狩猟(しゅりょう)すること（アザラシの呼吸(こきゅう)孔(あな)の脇(わき)でじっと動(うご)かず、アザラシが海面(かいめん)に上(あ)がってくるのを待(ま)つ）を好(この)む説明(せつめい)になっている。

Romanji

Kōshita kuma dokutoku no tokuchō ga, kuma ga ugokazu ni shuryōsuru koto azarashi no kokyū ana no waki de jitto ugokazu, azarashi ga kaimen ni agattekuru no o matsu o konomu setsumei ni natteiru.

Words

斯うした (こうした)

such

熊 (くま)

bear (animal)

独特 (どくとく)

peculiarity; uniqueness; characteristic

の (の)

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

特徴 (とくちょう)

feature; trait; characteristic; peculiarity; distinction

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

動く (うごく)

to move; to stir; to shift; to shake; to swing; to operate; to run; to go; to work; to be touched; to be influenced; to change; to vary; to fluctuate; to waver; certain; factual; to be transferred

に (に)

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

狩猟 (しゅりょう)

hunting

事 (こと、こん)

thing; matter; incident; occurrence; event; something serious; trouble; crisis; circumstances; situation; state of affairs; work; business; affair; after an inflectable word, creates a noun phrase indicating something the speaker does not feel close to; nominalizing suffix; pretending to ...; playing make-believe ...; alias; aka; nickname; alternative name; also known as

海豹 (あざらし、かいひょう、アザラシ)

true seal (animal); earless seal

呼吸 (こきゅう)

breath; respiration; knack; trick; secret (of doing something)

穴 (あな)

hole; deficit; shortage; missing person (in a team, meeting, etc.); vacancy; opening; flaw; profitable place (or item, etc.) not well known by others; upset victory (with a large payoff); pit (of a theater); hiding place; underbelly (of society, etc.)

脇 (わき)

armpit; under one's arm; side; flank; beside; close to; near; by; aside; to the side; away; out of the way; off-track; off-topic; deuteragonist; supporting role; second verse (in a linked series of poems)

で (で、にて)

indicates location of action; at; in; indicates time of action; indicates means of action; cause of effect; by; and then; so; indicates continuing action; indicates certainty, emphasis, etc.

凝乎と (じっと、じーっと、じーと、じいっと)

motionlessly (e.g. stand, wait); (be) still; fixedly (e.g. gaze, stare); intently (e.g. listen, think); patiently (endure); stoically; firmly (e.g. hold); restrained

海面 (かいめん)

sea level; (surface of) sea

上がる (あがる)

to rise; to go up; to come up; to ascend; to be raised; to enter (esp. from outdoors); to come in; to go in; to enter (a school); to advance to the next grade; to get out (of water); to come ashore; to increase; to improve; to make progress; to be promoted; to advance; to be made (of profit, etc.); to occur (esp. of a favourable result); to be adequate (to cover expenses, etc.); to be finished; to be done; to be over; (of rain) to stop; to lift; to stop (working properly); to cut out; to give out; to die; to win (in a card game, etc.); to be arrested; to turn up (of evidence, etc.); to be deep fried; to be spoken loudly; to get stage fright; to be offered (to the gods, etc.); to go; to visit; to eat; to drink; to be listed (as a candidate); to serve (in one's master's home); to go north; indicates completion

を (を)

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

待つ (まつ)

to wait; to await; to look forward to; to anticipate; to depend on; to need

好む (このむ)

to like; to prefer

説明 (せつめい)

explanation; exposition

成る (なる)

to become; to get; to grow; to be; to reach; to attain; to result in; to prove to be; to consist of; to be composed of; to succeed; to be complete; to change into; to be exchanged for; to play a role; to be promoted; to do ...