Towards this end, it has been shown that they are capable of raising their body temperature above the ambient level through muscular contractions.

In many endothermic animals, a controlled temporary state of hypothermia conserves energy by permitting the body temperature to drop nearly to ambient levels.

When the pressures in both ears reach ambient levels, the stimulus for the dizziness stops.

Outdoor wood boilers also typically have short stack heights in comparison to other wood-burning appliances, contributing to ambient levels of particulates at ground level.