Talk about how these characteristics, developed over thousands of years, help sea stars survive in their watery environments and why they are called adaptations. The next portion of the video ...

THE leaves of plants which are found growing in dry situations often show certain structural characteristics in common—thick-walled tissues, thick cuticles, stomata sunken below the surface ...

By Gilbert Nakweya NAIROBI ― Understanding the genetic traits of chimpanzees and how they help them adapt to unique ...