It is bogus to say clone animals and food can't be traced.

说克隆动物及其食品无法追踪，太假了。

youdao

We already know that scientists can clone animals, but what about humans?

科学家们已经能够克隆动物，那他们是否可以克隆人类？

youdao

These accomplishments immediately set off a worldwide debate: Should scientists be allowed to clone animals?

这些成果立即引发了一场世界范围的辩论： 应该允许科学家克隆动物吗？

youdao

Right now, scientists can only use stem cells to study particular diseases by creating embryos through the same process used to clone animals like Dolly the sheep.

FORBES: Stem Cell Science Heats Up

Creating a clone is far more expensive than breeding animals conventionally.

BBC: RELATED BBC SITES

Being able to clone pigs would make it easier to raise animals with organs suitable for transplants.

CNN: Researchers clone pigs