All wildlife has many life phases. This series puts the spotlight on animals in both their young or immature life stage and their adult stage, beginning with the Rufous-collared sparrow.
Sea urchins have a bad reputation, but they are essential to a healthy marine environment including reefs. The Variegated sea urchin is one of several species of sea urchin.
The active fight of plants against natural attacks, such as predation by insects and other animals, fungi that want to invade and fauna that use parts of the plants, has resulted in a variety of defence mechanisms. Some of these are highly beneficial to human kind.