How important are coral reefs?
Reading Time: < 1 minuteCoral reefs, also known as “the rainforests of the sea”, are well known for their beauty and vibrant colours, but apart from that, they are extremely important, both ecologically and economically. Unlike other marine ecosystems, coral reefs support more species per unit area, including about 4,000 species of fish, 800 species of hard corals, and hundreds […]
What are Supergiant Stars?
Reading Time: < 1 minuteIf our Sun is an average-sized star, there are some true monsters out there. They are supergiant stars, and they come in two colours: red and blue. Supergiant stars are among the most massive and luminous stars in the universe. Supergiant stars are formed out of massive main-sequence stars that have run out of hydrogen in their […]
How do ‘brainless’ starfish decide what to eat?
Reading Time: < 1 minuteFood is essential for any living organism to continue to survive. But for land dwellers, food is easily accessible in most parts of the world. Every day we can choose what we want to eat and to choose, we use our brain to decide our meals for the day. But how about starfish? Without having […]