Crickets can tell you the temperature.
While this might sound like some kind of old wives tale, it’s actually scientifically sound. Crickets are cold-blooded and take on the temperature of their surroundings. When the temperature rises, the chemical reactions that allow them to chirp come on more rapidly. By using a formula, you can count the chirping and determine what the temperature is outside.
The Earth is called Telleus and/or Terra after both greek and roman gods.