The riddle of zebras’ stripes

Why zebras have black and white stripes is a question that has intrigued scientists and spectators for centuries. A research team led by UC Davis, has now examined this riddle (in a very systematic way). Many hypotheses for zebra stripes have been proposed since Alfred Russel Wallace and Charles Darwin debated the problem 120 years … Read more

Trilobites can tell us how animals evolved

The trilobite, which became extinct millions of years ago, is commonly known as one of the first complex forms of life on earth.  Their fossils can be found in many parts of the world and are often collected for their interesting shapes and varieties. (There’s even a vacuum cleaner designed after this creature…) In fact there are actually 20,000 known varieties of … Read more