What is biological evolution and what evidence supports it? Biological evolution is the evolution of animals over thousands of years. Some evolution is evident in thousands of years, some evolution takes millions of years. Some animals that originally lived outside, needed a lot of sunlight. Then, after those animals moved into caves and caverns, they evolved into creatures that didn't need sunlight to survive. Much like the fish at the floor of the ocean, no sunlight ever penetrates the water far enough to provide them with sunlight and they have evolved to not need sunlight.
What are the evolutionary mechanisms and how do they work? Evolutionary mechanisms are the mechanisms or devices animals use to adapt to not needing or needing a certain thing. They work by the organism getting used to not having this specific trait or need.
Is evolution still happening? Yes, as long as the planet and world are changing, there will always be a need for evolution and adaptations. This means that there will always be evolution.