生物学家们长期认为，两类鳍脚亚目动物，即海狮和海象，都是从一种陆地上的类似于熊的动物繁衍而来的。
Biologists have long maintained that two groups of pinnipeds, sea lions and walruses, are descended from response to similar environmental pressures.
八目鳗类鱼有中肾，并且通常是其前肾的新生物。
Hagfish have a mesonephric kidney and are often neotenic of their pronephric kidney.
爱珍多龙化石属于主龙形下纲，主龙形下纲包括鸟类及鳄目爬行动物，但非蜥蜴、蛇或者是龟类。
The fossil he mentions is now a member of Archosauromorpha, a group that includes birds and crocodilians, but not lizards, snakes, or turtles.
这个“二人组”就成了已知最古老的化石证据，来支持无气门亚目一类螨虫的搭便车现象，或称寄载现象。
That makes the duo the oldest known fossil evidence of hitch-hiking behavior, or phoresy, in a large group of mites called the Astigmata.
此次大灭绝之前，兽孔目爬行动物（一种类哺乳动物）的数目远远多于恐龙的祖先祖龙。
Until this disaster, mammal-like creatures known as therapsids were actually more numerous than the ancestors of the dinosaurs, known as archosaurs.
这只恐龙很可能是原始的蜥脚类亚目动物——长颈、四条腿的食草动物，类似于我们较为熟悉的腕足类恐龙。
The animal would have been a primitive sauropod — a long-necked, four-legged grazer similar to the better known brachiosaurs.
沃姆（Worm）的团队估算每一个界中的属、科、目、类以及门类——一种高于“类”的名目——的总数。
Worm's team estimated the total number of genera, families, orders, classes, and phyla—a designation above class—in each kingdom.
蚜虫属于同翅目蚜总科，是一类重要的园林植物害虫。
Aphids belong to Homoptera Aphidoidea, Which are one kind of the most important garden plant pests.
绿藻门双星藻目一类美丽的单细胞微小绿色藻类，形状差异很大。
Any of a group of one-celled, microscopic green algae characterized by great variation in cell shape.
异脚类，端足目动物异脚类的一种小甲壳纲动物，如滨海的水蚤，体侧扁，无甲壳。
A small crustacean of the order amphipoda such as the beach flea having a laterally compressed body with no carapace.
不幸的是，有时候，八目鳗类鱼会成为自己防卫机制的受害者。但通常情况下，它会把自己拧成几节，然后从粘液中逃脱。
The hagfish, unfortunately, sometimes falls prey to its own defense mechanism, but normally it twists itself into knots to escape the gelatinous goop.
纤毛虫最重要的3个类群为下毛目、肾形目和前口目，其中又以下毛目种类最丰富。
The 3 most important groups of soil ciliates were Hypotrichida, Colpodida and Prostomatida, among which Hypotrichida had the greatest richness of species.
家禽的，鹑鸡类的属于或具有鹑鸡目特性的，包括普通的家禽、雉鸡、火鸡和松鸡。
Of, belonging to, or characteristic of the order Galliformes, which includes the common domestic fowl as well as the pheasants, turkeys, and grouse.
南美水生昆虫百科全书：半翅类-异翅亚目：南美洲的已知科，属，物种的插图说明。
Encyclopedia Of South American Aquatic Insects: Hemiptera - Heteroptera: Illustrated Keys to Known Families, Genera, and Species in South America.
手捡大型土壤动物共20个类群，以鞘翅目及其幼虫、膜翅目以及等翅目和倍足纲为主。
There were 20 groups of macrofauna by hand sorting, mainly including Coleoptera and their larvae, Hymenoptera, Isoptera and Diplopoda.
蜡蚧轮枝菌是同翅目蚜虫、粉虱和蚧类害虫的重要生防资源，可用于防治高附加值的茶叶上的主要害虫茶蚜。
It also can be applied to the control of the main pest such as tea aphids in the tea trees.
有关四腮目头足类的，以两对腮为特征，并包括有腔鹦鹉螺和许多化石的种类。
Of, relating to, or being a cephalopod of the order Tetrabranchiata, characterized by two pairs of gills and including the chambered nautilus and many fossil species.
特别是集部总集类存目所涉的某些清诗总集，此前学者关注较少，有关问题更为集中。
However, problems still remain. There has been little attention paid to the contents of the poetry collections in the Qing Dynasty.
携带肺吸虫尾蚴的淡水螺类拟钉螺亚科一新种（前鳃亚纲；中腹足目；圆口螺科；拟钉螺亚科）
A new species of the Triculinae of freshwater snails thatharbours cercariae of lung flukes from Fujian, China;
2008年对宿鸭湖湿地节肢动物群落结构调查研究，共采集到昆虫13目144科，同翅目、双翅目和半翅目为宿鸭湖湿地昆虫群落的优势类群，膜翅目、缨翅目、鞘翅目和直翅目属于常见类群。
The investigation and research of arthropod community structure in wetlands of Suya lake were conducted from 2007 to 2008, there were 13 orders and 144 families of insect were collected.
本文解剖观察了我国有代表性的鲨类脑颅共32种，分隶于8目14科24属。研究结果认为鲨类的脑颅共可分为9个式型和12个亚型。
This paper presents a comparative study on the neurocrania of 32 representative species of sharks of China, belonging to 24 genera, 14 families and 8 orders.
本文解剖观察了我国有代表性的鲨类脑颅共32种，分隶于8目14科24属。研究结果认为鲨类的脑颅共可分为9个式型和12个亚型。
This paper presents a comparative study on the neurocrania of 32 representative species of sharks of China, belonging to 24 genera, 14 families and 8 orders.
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