How is body temperature typically measured in animals?

Body temperature in animals is most accurately measured using a rectal thermometer. This method provides a reliable indication of the animal's core body temperature, which is essential for assessing their health status. Rectal temperature readings are generally accepted as the standard in veterinary practice because the rectum is a closed cavity that closely reflects the body's internal temperature.

In contrast, other methods may yield less accurate results. Oral thermometers, while suitable for certain animals, can be difficult to use effectively in pets, especially if they are uncooperative or if the measurement is influenced by food or drink intake. Ear thermometers may not provide an accurate reading as the ear canal's temperature can be affected by ambient conditions or ear infections. Skin surface thermometers usually measure the temperature of the skin rather than the core temperature, which does not give a true indication of the animal's internal condition.

Thus, rectal thermometers remain the preferred and most reliable choice for measuring body temperature in veterinary practice.