For instance, although cockroaches have a fantastic memory, he says, trying to teach them is futile when they have bits of their body missing.

他举例说，虽然蟑螂记忆力惊人，但假使身体某部份残缺，尝试教牠们任何事情都徒劳无功。

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Scientists have known for a while that when a body becomes starved for sustenance, cells start eating bits and pieces of themselves.

科学家们已经知晓当人体开始“饿求”食物时，细胞就会开始一点一点地吞噬自己。

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The human body regrows its outer layer of skin every two to four weeks, and bits and pieces of the old skin break off - to become dust.

人体皮肤外层每2至4周更新一次。老化的皮肤将会脱落，成为灰尘的一部分。

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Ian Gunn at the Animal Gene Storage Resource Centre of Australia, also in Melbourne, is collecting testes, ovaries, bits of skin and other body parts from over 100 species.

ECONOMIST: Endangered species

By working closely together, aerodynamicists and designers can determine the precise shape of the various bits of the car's body needed to ensure that the air slows down on all upper surfaces but speeds up on the under surfaces.

ECONOMIST: CAR DESIGN

Over nine years and at least a dozen sittings under a needle in a tattoo chair (Thomas said the tattoo parlor "is a great place for just hanging out too"), the 25-year old has had bits of his story inked on his body.

WSJ: An Illustrated Guide to Devin Thomas