There are many examples of animals that have evolved in recent years. One well-known example is the peppered moth. In the 19th century, the peppered moth was a light-colored insect that lived in England. However, during the Industrial Revolution, the air in England became polluted with soot, which darkened the trees and made it easier for birds to see the light-colored moths. As a result, the dark-colored moths had a better chance of surviving and reproducing, and over time, the population of peppered moths became dark-colored.
Another example of recent evolution is the antibiotic resistance of bacteria. Bacteria that are resistant to antibiotics have a better chance of surviving in the presence of antibiotics, and they can reproduce and pass on their resistance genes to their offspring. This has led to the emergence of antibiotic-resistant bacteria, which are a major public health threat.
Animals can also evolve in response to changes in their diet. For example, some species of fish have evolved to eat algae, while others have evolved to eat insects. This can lead to changes in the size, shape, and colour of the fish, as well as its behaviour and physiology.
Overall, there are many examples of animals that have evolved in recent years, and there is evidence that evolution is still happening today.