ANY QUESTIONS
Frequently Asked Questions
Animals first evolved over 600 million years ago during the Ediacaran period. The earliest animals were simple, soft-bodied organisms that lived in oceans. Over time, they diversified into more complex forms during the Cambrian Explosion, when most major animal groups appeared.
This phenomenon, known as convergent evolution, occurs when unrelated species develop similar traits due to similar environmental pressures. For example, dolphins and sharks both have streamlined bodies for swimming, even though one is a mammal and the other is a fish.
Natural selection is a key mechanism of evolution, where individuals with advantageous traits are more likely to survive and reproduce. Over generations, these traits become more common, allowing species to adapt to changing environments.
Animals evolved to live in different environments based on available resources and survival needs. Early vertebrates transitioned from water to land to exploit new food sources, while others, like whales and sea turtles, returned to aquatic environments for abundant marine resources.
Understanding the evolution and origins of animals provides insights into their ecological roles and adaptations. This knowledge helps conservationists create strategies to protect species and their habitats, ensuring their survival amid environmental changes.
