| 水蛭 | shuǐ zhì | leech | |
| 蛭石 | zhì shí | vermiculite | |
| 水蛭素 | shuǐ zhì sù | hirudin | |
| 笄蛭 | jī zhì | a kind of earthworm |
| 1 | To find out why, scientists infected rotifers with a deadly fungus. | |
| 2 | To find out why, scientists infected rotifers with a deadly fungus. | |
| 3 | A study in the journal Science suggests that for bdelloid rotifers, the answer is blowing in the wind. | |
| 4 | The fungi don' t survive the desiccation, so the longer the bdelloids stay dry, the better off they be. | |
| 5 | So for celibate rotifers that want to stay clean, a good long dry spell is just what the doctor ordered. |