scientists monitored the birds during the breeding season and noted when the female birds were preparing to lay eggs.
科学家在繁殖期观测这些鸭,并着重注意雌鸭何时準备生蛋。
and when the breeding season came, he refused to join the spawning, saying, 「i「ve swum around the entire world.」
当繁殖季节来临时,他拒绝参加产卵活动,说:「我游遍了整个世界。」
only one crab lives in a burrow and outside of the breeding season red crabs are solitary, and do not tolerate intruders into their burrows.
一个洞内只有一只螃蟹,除繁殖期以外它们都是孤独的,并且不能容忍洞中的入侵者。
some 240 nests were built during the breeding season but complete data were available from only 119 of these.
大约240个雀巢是在繁殖季节修筑的,但只获得了其中119个完整的资料。
they」ve found that during the breeding season the male finds a nest pool and at night when the tide is in hums to attract a female.
研究者发现在繁殖季节,雄鱼会找一个栖息的水塘,在涨潮的夜晚用音乐吸引雌鱼。