Jellyfish are simple marine animals that don’t have a brain or a heart. Instead of a brain, they have a nerve net that helps them sense their environment and control movements. Their bodies are mostly made of water, which makes them transparent and light. Without a heart, jellyfish pump water through their bodies to move and get oxygen. They

It may sound surprising, but humans share about 60% of their DNA with bananas. DNA is the genetic material that determines the traits of all living things. While humans and bananas look very different, many basic cellular functions are similar in all life forms. This shared DNA highlights how all life on Earth is connected through evolution. The

A group of crows is known as a “murder,” which sounds mysterious and a bit scary. This unusual name comes from old folklore and stories where crows were often linked to death and bad luck. However, in reality, crows are very intelligent and social birds. Crows often gather in large groups to communicate, share information, and protect each o

Dolphins are remarkable marine mammals known for their intelligence and social behavior. One fascinating fact about them is that they sleep with one eye open. This is because dolphins need to be conscious enough to breathe and watch for predators while resting. Their brain is divided into two halves, allowing one side to sleep while the other re