Red flag as list of world's most endangered species swells

KWS ranger Salome Lemalasia from samburu community taking care of 6 year old black rhino named Loijipu. [David Gichuru, Standard]

Each year, thousands of Monarch butterflies flap their striking orange, black and white wings and fly in unison from north eastern Canada and the US to Mexico.

Travelling past the rocky mountains as far as Michoacan and Estado de Mexico, this epic, 3,000-mile journey has been described as "one of the greatest natural events on Earth", by National Geographic. But now, such sights are becoming increasingly rare. Due to human behaviour, this insect and many other creatures that make up the rich tapestry of life on Earth are on the International Union for Conservation of Nature's (IUCN) red list of endangered species.