The females come ashore two or more times a season on an average of every 3 years to lay eggs in a nest cavity on the beaches 而母龟通常每隔三年登陆沙滩两次或以上挖坑产卵。
They inhabit the human large intestine and migrate to the anus at night to lay eggs . this may result in local itchiness 蛲虫寄生于人体的大肠内,在晚间蠕行至肛门处产卵,可引致局部痕痒。
The female pigeon cannot lay eggs if she is alone . in order for her ovaries to function she must be able to see another pigeon 单独一只雌鸽子下不出蛋,必须在它见到另一只鸽子时其卵巢才能发挥作用。
The female stores the sperm until she is ready to lay eggs . she may lay 100 at a time , protecting them in a silken egg sac 母蜘蛛会贮存这些精液直到它为产卵做好了准备。它可以一次产100枚卵,然后将它们保护在一个丝质卵囊内。
One reason for it is that around easter time the rural household had plenty of eggs handy . the hens began to lay eggs again in the spring (其中一个原因也许是,随着春天的来临,鸡开始下蛋的。在复活节前后,农户手里有许多鸡蛋。 )
D : one reason for it is that around easter time the rural household had plenty of eggs handy . the hens began to lay eggs again in the spring (其中一个原因也许是,随着春天的来临,鸡开始下蛋的。在复活节前后,农户手里有许多鸡蛋。 )
Annie : duckbills can lay eggs and lactation as well . it has an animal ' s body , but has a duck ' s mouth . it is a rare animal . no wonder the australian like it 安妮:鸭嘴兽既能下蛋,又能哺乳,长着兽的身体,却有鸭的嘴巴,真是奇特,要不澳洲人这样喜爱它。
Green turtles normally have a very low survival rate due to predation and natural mortality and mature turtles only lay eggs every two to three years on the average 加上海龟通常每二至三年才繁殖一次,因此非法挖取海龟蛋对海龟种群会造成严重的伤害。
On the basis of 6 years of research , this result showed that adult chinese alligators could lay eggs in the next year if the temperature 5 ~ 8 during a deep hibernation for them 6年的研究表明扬子鳄在深眠期的温度处在5 ~ 8时,扬子鳄越冬后能够成功繁殖产卵。
Elasmosaurus swam slowly like a turtle does . it came onto the sandy beach a little bit , maybe to lay eggs . it lived in the oceans but breathed air 依拉丝莫龙游泳时像乌龟一样的慢。它有时候到沙滩上,可能是为了生小恐龙。依拉丝莫龙生活在海洋中,但是它要呼吸空气。