How can scientific theories on evolution and the fossil record change over time?

Reinterpretation and new discoveries are constantly upon us, and they may change what we once thought about a fossil of the evolution of life. As these new ideas surface, scientists can use the scientific method to refine theories and continue research to thoroughly answer questions.

Temperature. Desert Day Temp. During the day, desert temperatures rise to an average of 38°C (a little over 100°F). At night, desert temperatures fall .

Explanation:

Most deserts are warmer during the day than they are at night, and the difference in temperature is quite drastic. The average daytime temperature is 100°F, while at night the average temperature is 25°F. This large temperature difference is due to low amount of moisture in the desert air.The town of Ain Sefra, on the edge of the Sahara desert, was hit by icy weather last week - and even snow. Snowfall is very rare in the Sahara, despite the fact that it can be cold at night - because there's rarely enough water around for any kind of precipitation.