ある種の動物はどんどん数が減ってきている。

Sentence Analyzer

ある 動物 どんどん 減ってきている

English Translation

Certain animals are fast disappearing.

Furigana

ある(たね)動物(どうぶつ)はどんどん(かず)()ってきている。

Romanji

Aru tane no dōbutsu wa dondon kazu ga hettekiteiru.

Words

(ある)
a certain ...; some ...
(たね)
seed; pip; kind; variety; quality; tone; material; matter; subject; theme; (news) copy; leaven (bread); cause; source; trick; secret; inside story
()
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
動物 (どうぶつ)
animal
()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
どんどん (どんどん)
drumming (noise); rapidly; steadily
()
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
減る (へる)
to decrease (in size or number); to diminish; to abate

Kanji

Readings: シュ、 たね、 -ぐさ
Meanings: species, kind, class, variety, seed
Readings: ドウ、 うご.く、 うご.かす
Meanings: move, motion, change, confusion, shift, shake
Readings: ブツ、 モツ、 もの、 もの-
Meanings: thing, object, matter
Readings: スウ、 ス、 サク、 ソク、 シュ、 かず、 かぞ.える、 しばしば、 せ.める、 わずらわ.しい
Meanings: number, strength, fate, law, figures
Readings: ゲン、 へ.る、 へ.らす
Meanings: dwindle, decrease, reduce, decline, curtail, get hungry