这些食肉细菌被认为是由腐生物进化而来。
These predatory bacteria are thought to have evolved from saprophages.
他们揭露了生物的蓝色光束，可能来源于某个会发光的食肉动物也可能是受到其他的刺激，如通过的阴影。
They exposed the creatures to a beam of directed blue light, as might come from certain bioluminescent predators, as well as to other stimuli such as passing shadows.
之前做过包括水生食肉哺乳动物等活体动物实验显示，污染物质能对海洋生物产生有害作用。
Prior research on laboratory animals, including captive aquatic carnivorous mammals, has shown that the pollutants "can cause deleterious effects," she said.
生物现在尊重饮食类型：草食动物，食肉动物和杂食动物；他们将如果，喂错食物类型生病。
Creatures now respect diet type: herbivore, carnivore, and omnivore; they will get sick if feed the wrong food type.
Head博士提到：他们就如一顿美味的自助餐一样，在孵化季节成千上万的毫无防御能力的晰脚类恐龙幼仔支撑了整个食肉恐龙的生物食物链。
"It would have been a smorgasbord," said Head. "Hundreds or thousands of defenceless baby sauropods could have supported an ecosystem of predators during the hatching season."
生物学家：在一片食肉动物不受控制的灌木丛里，每公顷的新西兰森林就有2到6只船鼠和3到13只负鼠。
BIOLOGIST: In a bush that doesn't have predator control, every hectare of indigenous forests within New Zealand has between 2 and 6 ship rats and about 3 to 13 possums.
举例来说，林地生物群落里的草食动物有兔子、鹿、老鼠，蜗牛以及昆虫，它们不时被食肉动物吃掉。
Examples of herbivores in a woodland community are rabbits, deer, mice, snails, and insects. The herbivores are sometimes eaten by the carnivores.
从微小的浮游生物到巨型食肉动物，我们将看到海洋动物如何捕食和如何成长，如何出生和成长，以及海洋动物如何互动也将是我们重点介绍的一部分。
From tiny plankton to giant predators, we will see how Marine animals eat and grow. How babies are born and grow, and how ocean animals interact will also be a focus of this course.
古生物学家认为这两种食肉类恐龙轻巧、灵活、速度快，而且每个蹄子有三个巨大锋利的爪子。
Paleontologists believe the meat-eating theropod dinosaur was light, agile and very fleet of foot, with three large slashing claws on each hand.
一整天都在生物试验室看着食肉细菌啃食小型啮齿动物很能增加食欲。
When you spend all day in a bio-lab, watching flesh-eating bacteria skeletonize small rodents, it really works up an appetite.
一整天都在生物试验室看着食肉细菌啃食小型啮齿动物很能增加食欲。
When you spend all day in a bio-lab, watching flesh-eating bacteria skeletonize small rodents, it really works up an appetite.
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