The Scottish Cairngorms must surely be one of Britain’s harshest environments. Living in this spectacular mountain range, which was chiseled by glaciers and rainfall for millennia, truly is a battle for survival each and every day.
The great salmon run of North America. The famous wildebeest trek across the Serengeti. The mammoth migration of the green sea turtle to lay its eggs. These are just a few examples of epic journeys undertaken by animals. But even these pale in comparison to the migration of a small, slender, white seabird with a forked tail that weighs less than half a pound: the Arctic tern.
Two weeks ago, I wrote a brief introduction to the world of freaky frogs. But back then, we barely scratched the surface. Today, we’re well and truly diving into the deep end – of Lake Titicaca to be precise. Covering 8,372 square km, straddling the border between Peru and Bolivia, this is the largest lake in South America.