Some tropical fish reproduce by laying eggs.

有带鱼靠产卵繁殖。

Beetles bury pellets of dung and lay their eggs within them.

甲壳虫把粪粒埋起来,然后在里面产卵。

The cuckoo lays its eggs in other birds’ nests.

杜鹃在别的鸟巢中产卵。

Insects propagate themselves by means of eggs.

昆虫以产卵繁殖后代。

Birds reproduce by laying eggs.

鸟类由产卵繁殖。

A young salmonid (salmon or trout) with parr-marks before migration to the sea and after dispersal from the redd.

幼鲑一个幼鲑鱼(鲑鱼或鳟鱼)具有幼鲑横带，迴游海洋以前与散布在产卵场之后。

The frogs haven’t spawned yet.

青蛙还未产卵。

But fed with oakery pollen,indices as above were 9. 59 days, 37. 17 days, 3. 89 days,and 0. 86 per day,respectively.

而用青杠花粉饲养，其发育历期长达9．59天，雌雄成螨寿命缩短为37．17天和3．87天，日平均产卵量仅0．86粒。

After mating and oviposition, statistics showed that the higher of the percentage of small eggs is, the more of the unlaid eggs is.

交配产卵后，初步统计发现小卵百大，则遗腹卵有多的倾向。

The imago period is from the early April to end of May.The reproduction belongs to amphigenesis, but it may happen female parthenogenesis.A female average egg number is 3975.

成虫期4月上旬至5月下旬，行两性生殖，存在孤雌生殖，雌成虫平均产卵量为3975粒。