tion. the conservation status of the animal</li>
<li>sleep_total. total amount of sleep, in hours</li>
<li>sleep_rem. rem sleep, in hours</li>
<li>sleep_cycle. length of sleep cycle, in hours</li>
<li>awake. amount of time spent awake, in hours</li>
<li>brainwt. brain weight in kilograms</li>
<li>bodywt. body weight in kilograms</li>
</ul>
</p>
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