The rockies, north america
The Rockies is the greatest temperate mountain range in the world, but animals here have had to adapt to the seasons in order to survive, picking the right moment to act,’ says Steve.
‘We look at how male bighorn sheep have a short period to mate, because the females want to give birth when the new grass is growing to give their babies the best chance at life. Then there’s the Rufous hummingbird, which makes the most amazing migratory journey of any creature in the Rockies. It has a brain the size of a grain of rice, but somehow it knows which way to fly to find a meal.
‘To survive when food runs out, the tiger salamander turns cannibal and eats its brothers and sisters, and when its pond dries up, it changes from an aquatic to a terrestrial animal.’
Quick change: tiger salamander