Final answer:
The age of a lion can be estimated by observing various characteristics and behaviors, including the color of its nose, the size of its mane, the color of its hair, and the rings on its tail.
Step-by-step explanation:
The age of a lion can be estimated by observing various characteristics and behaviors. One method is to look at the color of the lion's nose, which changes from pink to black as the lion ages. Another indicator is the size of the lion's mane, with older males having fuller and darker manes than younger ones. The color of hair can also give a rough estimate of age, as younger lions have a lighter, more golden color while older lions have a darker, more faded color. However, the most reliable method is to look for rings on the lion's tail, as each ring represents one year of growth, similar to tree rings.