Similarly, a plant or animal cannot squander all its energy on growing a big body if none would be left over for reproduction, for this is the surest way to extinction.

同样，如果一种植物或动物没有留下任何可以繁殖的后代，它就不能把所有的能量浪费在使自己变得更强壮上，因为这是最可能走向灭绝的方式。

youdao

Petrifaction may also involve a simultaneous exchange of the original substance of a dead plant or animal with mineral matter of a different composition.

石化还可能同时涉及将死亡的动植物的原有物质与不同成分的矿物质进行交换的作用。

youdao

Medical research often makes use of the forest's plant and animal life, and the destruction of such species could prevent researchers from finding cures for certain diseases.

医学研究通常利用森林中的动植物，毁坏这些物种可能会令研究人员找不到某些疾病的治疗药物。

youdao

Three were plant-eaters. They were the western horse, the ancient bison and a two-meter tall animal called the Harlan's ground sloth.

VOA: special.2010.04.07

The International Society of Toxinology supported the Initiative at the recent World Congress of Plant, Animal and Microbial Toxins in Recife,Brazil.

VOA: special.2009.05.05

As a result,the report says, the rate of plant and animal species disappearing is continuing faster than ever before.

VOA: special.2010.05.25

The very basis for plant, animal, and human proliferation is the soil (another controversial topic).

FORBES: Why Butchers Are Sexy And Cutting Meat Is An Art Form

It celebrates New Zealand's unique plant and animal life and to mark the 2010 UN International Year of Biodiversity.

UNESCO: Te Kura A Rito O Newton students win UN Photo Awards

The area is rich in plant and animal life with over 38 threatened species of flora and fauna.

UNESCO: EDUCATION