Scientists hope work with poison gas can be a lifesaver – CNN.com
…the sealed enclosure starts to fill with poison gas — hydrogen sulfide. An ounce could kill dozens of people.
The rat sniffs the air a few times, and within a minute, his naturally twitchy movements are almost still. …
At first glance, that looks bad. …[b]ut something else is going on inside this rat. He isn’t dead…
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