mammals

marine mammals generally swim with the current.

海哺乳动一般顺流方向而游。

Most mammals are diphyodonts.

大部分哺乳类动有乳齿及永久 齿之别。

Most mammals live on land.

大多数哺乳动生活在陆地上。

mammals were first domesticated for their milk.

哺乳动最初被驯养是为了取奶。

Whales are mammals that live in the sea.

是生活在海哺乳动。

Sea mammals must emerge periodically to breathe.

海生哺乳动必须不断地浮现出海面呼吸

The boa feeds on birds and small mammals.

蟒主要吃鸟和小哺乳动。

several small gregarious cetacean mammals

几种小型群居类哺乳动

mammals have, by and large, bigger brains than reptiles.

总说来，哺乳动脑比爬行动大。

There are lots of marine mammals such as whales and seals in the sea.

海里有许多诸如鱼和海豹类海生哺乳动。

Bats are the only mammals to have wings and to achieve sustained flight.

是唯一有翅膀且能持续飞行哺乳动。

the insulation of marine mammals in temperate seas pre-adapts them for polar seas.

把海哺乳类动隔离在温带海域使其预适应极地海域。

order Chiroptera) of the only mammals to have evolved true flight.

九百多种,属翼手目。是唯一一类演化出真正飞翔能力哺乳动统称。

massive plantigrade carnivorous or omnivorous mammals with long shaggy coats and strong claws.

结实食肉或杂食性跖行哺乳动，皮毛长而粗糙，爪有力。

any of various fissiped mammals with nonretractile claws and typically long muzzles.

爪不能伸缩、长鼻子多种裂足哺乳动。

any of several small ungulate mammals of Africa and Asia with rodent-like incisors and feet with hooflike toes.

非洲和亚洲有爪类哺乳动，有类似啮齿动门牙和类似有蹄动脚。

Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.

森林对鸟类来说是重要栖息地，而且在温带森林里，小型哺乳动居住在稠密森林下层。

any of various undomesticated mammals of the family Canidae that are thought to resemble domestic dogs as distinguished from jackals or wolves.

犬科动各种非家养哺乳动，由于区别于豺和狼而被认为是象狗。

Schistosome infected people or other mammals from the discharge of faecal egg, if manure contaminated the water, eggs were brought into the water, hatched miracidium in the water.

感染血吸虫人或其它哺乳动从粪便排出虫卵，若粪便污染了水，虫卵被带进水，在水里孵出毛蚴。

Any of several very large,extinct proboscidian mammals of the genus Mammut(sometimes Mastodon,resembling the elephant but having molar teeth of a different structure.

乳齿象美洲乳齿象属（有时为乳齿象）几种已灭绝高大、长鼻哺乳动，与大象外形相似，但臼齿结构不同